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Conserved domains on  [gi|1747825977|gb|QER53685|]
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dTDP-4-dehydrorhamnose reductase [Klebsiella quasipneumoniae subsp. quasipneumoniae]

Protein Classification

Rossmann-fold NAD(P)-binding domain-containing protein( domain architecture ID 229380)

Rossmann-fold NAD(P)-binding domain-containing protein may function as an oxidoreductase

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
NADB_Rossmann super family cl21454
Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a ...
1-296 1.63e-161

Rossmann-fold NAD(P)(+)-binding proteins; A large family of proteins that share a Rossmann-fold NAD(P)H/NAD(P)(+) binding (NADB) domain. The NADB domain is found in numerous dehydrogenases of metabolic pathways such as glycolysis, and many other redox enzymes. NAD binding involves numerous hydrogen-bonds and van der Waals contacts, in particular H-bonding of residues in a turn between the first strand and the subsequent helix of the Rossmann-fold topology. Characteristically, this turn exhibits a consensus binding pattern similar to GXGXXG, in which the first 2 glycines participate in NAD(P)-binding, and the third facilitates close packing of the helix to the beta-strand. Typically, proteins in this family contain a second domain in addition to the NADB domain, which is responsible for specifically binding a substrate and catalyzing a particular enzymatic reaction.


The actual alignment was detected with superfamily member PRK09987:

Pssm-ID: 473865 [Multi-domain]  Cd Length: 299  Bit Score: 451.28  E-value: 1.63e-161
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKELCGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLL 80
Cdd:PRK09987    1 MNILLFGKTGQVGWELQRALAPLGNLIALDVHSTDYCGDFSNPEGVAETVRKIRPDVIVNAAAHTAVDKAESEPEFAQLL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  81 NDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA 160
Cdd:PRK09987   81 NATSVEAIAKAANEVGAWVVHYSTDYVFPGTGDIPWQETDATAPLNVYGETKLAGEKALQEHCAKHLIFRTSWVYAGKGN 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRNKAVAGTYHLVASGETSWYDYARFVFDVARANGVQ 240
Cdd:PRK09987  161 NFAKTMLRLAKEREELSVINDQFGAPTGAELLADCTAHAIRVALNKPEVAGLYHLVASGTTTWHDYAALVFEEARKAGIT 240
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1747825977 241 LAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVVVEVSGK 296
Cdd:PRK09987  241 LALNKLNAVPTSAYPTPARRPHNSRLNTEKFQQNFALVLPDWQVGVKRMLTELFTT 296
 
Name Accession Description Interval E-value
PRK09987 PRK09987
dTDP-4-dehydrorhamnose reductase; Provisional
1-296 1.63e-161

dTDP-4-dehydrorhamnose reductase; Provisional


Pssm-ID: 182184 [Multi-domain]  Cd Length: 299  Bit Score: 451.28  E-value: 1.63e-161
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKELCGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLL 80
Cdd:PRK09987    1 MNILLFGKTGQVGWELQRALAPLGNLIALDVHSTDYCGDFSNPEGVAETVRKIRPDVIVNAAAHTAVDKAESEPEFAQLL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  81 NDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA 160
Cdd:PRK09987   81 NATSVEAIAKAANEVGAWVVHYSTDYVFPGTGDIPWQETDATAPLNVYGETKLAGEKALQEHCAKHLIFRTSWVYAGKGN 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRNKAVAGTYHLVASGETSWYDYARFVFDVARANGVQ 240
Cdd:PRK09987  161 NFAKTMLRLAKEREELSVINDQFGAPTGAELLADCTAHAIRVALNKPEVAGLYHLVASGTTTWHDYAALVFEEARKAGIT 240
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1747825977 241 LAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVVVEVSGK 296
Cdd:PRK09987  241 LALNKLNAVPTSAYPTPARRPHNSRLNTEKFQQNFALVLPDWQVGVKRMLTELFTT 296
RfbD COG1091
dTDP-4-dehydrorhamnose reductase [Cell wall/membrane/envelope biogenesis];
2-293 4.97e-136

dTDP-4-dehydrorhamnose reductase [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 440708 [Multi-domain]  Cd Length: 279  Bit Score: 385.64  E-value: 4.97e-136
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLG-EVVAVDYfdKELcgDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLL 80
Cdd:COG1091     1 RILVTGANGQLGRALVRLLAERGyEVVALDR--SEL--DITDPEAVAALLEEVRPDVVINAAAYTAVDKAESEPELAYAV 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  81 NDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA 160
Cdd:COG1091    77 NATGPANLAEACAELGARLIHISTDYVFDGTKGTPYTEDDPPNPLNVYGRSKLAGEQAVRAAGPRHLILRTSWVYGPHGK 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRnkavaGTYHLVASGETSWYDYARFVFDVARANgvq 240
Cdd:COG1091   157 NFVKTMLRLLKEGEELRVVDDQIGSPTYAADLARAILALLEKDLS-----GIYHLTGSGETSWYEFARAIAELAGLD--- 228
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1747825977 241 laiNEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVVVEV 293
Cdd:COG1091   229 ---ALVEPITTAEYPTPAKRPANSVLDNSKLEATLGIKPPDWREALAELLAEL 278
RmlD_sub_bind pfam04321
RmlD substrate binding domain; L-rhamnose is a saccharide required for the virulence of some ...
3-290 1.92e-125

RmlD substrate binding domain; L-rhamnose is a saccharide required for the virulence of some bacteria. Its precursor, dTDP-L-rhamnose, is synthesized by four different enzymes the final one of which is RmlD. The RmlD substrate binding domain is responsible for binding a sugar nucleotide.


Pssm-ID: 427865 [Multi-domain]  Cd Length: 284  Bit Score: 359.28  E-value: 1.92e-125
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   3 ILLIGKNGQVGWELQRSLSTLG-EVVAVDyfdkELCGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLLN 81
Cdd:pfam04321   1 ILITGANGQLGTELRRLLAERGiEVVALT----RAELDLTDPEAVARLLREIKPDVVVNAAAYTAVDKAESEPDLAYAIN 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  82 DKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGAN 161
Cdd:pfam04321  77 ALAPANLAEACAAVGAPLIHISTDYVFDGTKPRPYEEDDETNPLNVYGRTKLAGEQAVRAAGPRHLILRTSWVYGEYGNN 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 162 FAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRNKAVAGTYHLVASGETSWYDYARFVFDVARANGVql 241
Cdd:pfam04321 157 FVKTMLRLAAEREELKVVDDQFGRPTWARDLADVLLQLLERLAADPPYWGVYHLSNSGQTSWYEFARAIFDEAGADPS-- 234
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1747825977 242 ainEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVV 290
Cdd:pfam04321 235 ---EVRPITTAEFPTPARRPANSVLDTTKLEATFGIVLRPWREALKEVL 280
rmlD TIGR01214
dTDP-4-dehydrorhamnose reductase; This enzyme catalyzes the last of 4 steps in making ...
2-290 1.38e-111

dTDP-4-dehydrorhamnose reductase; This enzyme catalyzes the last of 4 steps in making dTDP-rhamnose, a precursor of LPS core antigen, O-antigen, etc. [Cell envelope, Biosynthesis and degradation of surface polysaccharides and lipopolysaccharides]


Pssm-ID: 273505 [Multi-domain]  Cd Length: 287  Bit Score: 324.35  E-value: 1.38e-111
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKelcGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLLN 81
Cdd:TIGR01214   1 RILITGANGQLGRELVQQLSPEGRVVVALTRSQ---LDLTDPEALERLLRAIRPDAVVNTAAYTDVDGAESDPEKAFAVN 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  82 DKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA- 160
Cdd:TIGR01214  78 ALAPQNLARAAARHGARLVHISTDYVFDGEGKRPYREDDATNPLNVYGQSKLAGEQAVRAAGPNALIVRTSWLYGGGGGr 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRnkaVAGTYHLVASGETSWYDYARFVFDVARANGVQ 240
Cdd:TIGR01214 158 NFVRTMLRLAGRGEELRVVDDQIGSPTYAGDLARVIAALLQRLAR---ARGVYHLANSGQVSWYEFAQAIFEEAGADGLL 234
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|
gi 1747825977 241 LAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVV 290
Cdd:TIGR01214 235 LHPQEVKPISSKEYPRPARRPAYSVLDNTKLVKTLGLPLPHWREALRRYL 284
dTDP_HR_like_SDR_e cd05254
dTDP-6-deoxy-L-lyxo-4-hexulose reductase and related proteins, extended (e) SDRs; ...
2-286 6.62e-99

dTDP-6-deoxy-L-lyxo-4-hexulose reductase and related proteins, extended (e) SDRs; dTDP-6-deoxy-L-lyxo-4-hexulose reductase, an extended SDR, synthesizes dTDP-L-rhamnose from alpha-D-glucose-1-phosphate, providing the precursor of L-rhamnose, an essential cell wall component of many pathogenic bacteria. This subgroup has the characteristic active site tetrad and NADP-binding motif. This subgroup also contains human MAT2B, the regulatory subunit of methionine adenosyltransferase (MAT); MAT catalyzes S-adenosylmethionine synthesis. The human gene encoding MAT2B encodes two major splicing variants which are induced in human cell liver cancer and regulate HuR, an mRNA-binding protein which stabilizes the mRNA of several cyclins, to affect cell proliferation. Both MAT2B variants include this extended SDR domain. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187564 [Multi-domain]  Cd Length: 280  Bit Score: 291.84  E-value: 6.62e-99
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLG-EVVAVDYFDKEL-CGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDL 79
Cdd:cd05254     1 KILITGATGMLGRALVRLLKERGyEVIGTGRSRASLfKLDLTDPDAVEEAIRDYKPDVIINCAAYTRVDKCESDPELAYR 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  80 LNDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRqEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVY--AT 157
Cdd:cd05254    81 VNVLAPENLARAAKEVGARLIHISTDYVFDGKKGPYK-EEDAPNPLNVYGKSKLLGEVAVLNANPRYLILRTSWLYgeLK 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 158 RGANFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREelrnKAVAGTYHLVASGETSWYDYARFVFDVARan 237
Cdd:cd05254   160 NGENFVEWMLRLAAERKEVNVVHDQIGSPTYAADLADAILELIER----NSLTGIYHLSNSGPISKYEFAKLIADALG-- 233
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1747825977 238 gvqLAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGV 286
Cdd:cd05254   234 ---LPDVEIKPITSSEYPLPARRPANSSLDCSKLEELGGIKPPDWKEAL 279
 
Name Accession Description Interval E-value
PRK09987 PRK09987
dTDP-4-dehydrorhamnose reductase; Provisional
1-296 1.63e-161

dTDP-4-dehydrorhamnose reductase; Provisional


Pssm-ID: 182184 [Multi-domain]  Cd Length: 299  Bit Score: 451.28  E-value: 1.63e-161
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKELCGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLL 80
Cdd:PRK09987    1 MNILLFGKTGQVGWELQRALAPLGNLIALDVHSTDYCGDFSNPEGVAETVRKIRPDVIVNAAAHTAVDKAESEPEFAQLL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  81 NDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA 160
Cdd:PRK09987   81 NATSVEAIAKAANEVGAWVVHYSTDYVFPGTGDIPWQETDATAPLNVYGETKLAGEKALQEHCAKHLIFRTSWVYAGKGN 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRNKAVAGTYHLVASGETSWYDYARFVFDVARANGVQ 240
Cdd:PRK09987  161 NFAKTMLRLAKEREELSVINDQFGAPTGAELLADCTAHAIRVALNKPEVAGLYHLVASGTTTWHDYAALVFEEARKAGIT 240
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1747825977 241 LAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVVVEVSGK 296
Cdd:PRK09987  241 LALNKLNAVPTSAYPTPARRPHNSRLNTEKFQQNFALVLPDWQVGVKRMLTELFTT 296
RfbD COG1091
dTDP-4-dehydrorhamnose reductase [Cell wall/membrane/envelope biogenesis];
2-293 4.97e-136

dTDP-4-dehydrorhamnose reductase [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 440708 [Multi-domain]  Cd Length: 279  Bit Score: 385.64  E-value: 4.97e-136
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLG-EVVAVDYfdKELcgDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLL 80
Cdd:COG1091     1 RILVTGANGQLGRALVRLLAERGyEVVALDR--SEL--DITDPEAVAALLEEVRPDVVINAAAYTAVDKAESEPELAYAV 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  81 NDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA 160
Cdd:COG1091    77 NATGPANLAEACAELGARLIHISTDYVFDGTKGTPYTEDDPPNPLNVYGRSKLAGEQAVRAAGPRHLILRTSWVYGPHGK 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRnkavaGTYHLVASGETSWYDYARFVFDVARANgvq 240
Cdd:COG1091   157 NFVKTMLRLLKEGEELRVVDDQIGSPTYAADLARAILALLEKDLS-----GIYHLTGSGETSWYEFARAIAELAGLD--- 228
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1747825977 241 laiNEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVVVEV 293
Cdd:COG1091   229 ---ALVEPITTAEYPTPAKRPANSVLDNSKLEATLGIKPPDWREALAELLAEL 278
RmlD_sub_bind pfam04321
RmlD substrate binding domain; L-rhamnose is a saccharide required for the virulence of some ...
3-290 1.92e-125

RmlD substrate binding domain; L-rhamnose is a saccharide required for the virulence of some bacteria. Its precursor, dTDP-L-rhamnose, is synthesized by four different enzymes the final one of which is RmlD. The RmlD substrate binding domain is responsible for binding a sugar nucleotide.


Pssm-ID: 427865 [Multi-domain]  Cd Length: 284  Bit Score: 359.28  E-value: 1.92e-125
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   3 ILLIGKNGQVGWELQRSLSTLG-EVVAVDyfdkELCGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLLN 81
Cdd:pfam04321   1 ILITGANGQLGTELRRLLAERGiEVVALT----RAELDLTDPEAVARLLREIKPDVVVNAAAYTAVDKAESEPDLAYAIN 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  82 DKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGAN 161
Cdd:pfam04321  77 ALAPANLAEACAAVGAPLIHISTDYVFDGTKPRPYEEDDETNPLNVYGRTKLAGEQAVRAAGPRHLILRTSWVYGEYGNN 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 162 FAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRNKAVAGTYHLVASGETSWYDYARFVFDVARANGVql 241
Cdd:pfam04321 157 FVKTMLRLAAEREELKVVDDQFGRPTWARDLADVLLQLLERLAADPPYWGVYHLSNSGQTSWYEFARAIFDEAGADPS-- 234
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1747825977 242 ainEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVV 290
Cdd:pfam04321 235 ---EVRPITTAEFPTPARRPANSVLDTTKLEATFGIVLRPWREALKEVL 280
rmlD TIGR01214
dTDP-4-dehydrorhamnose reductase; This enzyme catalyzes the last of 4 steps in making ...
2-290 1.38e-111

dTDP-4-dehydrorhamnose reductase; This enzyme catalyzes the last of 4 steps in making dTDP-rhamnose, a precursor of LPS core antigen, O-antigen, etc. [Cell envelope, Biosynthesis and degradation of surface polysaccharides and lipopolysaccharides]


Pssm-ID: 273505 [Multi-domain]  Cd Length: 287  Bit Score: 324.35  E-value: 1.38e-111
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKelcGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLLN 81
Cdd:TIGR01214   1 RILITGANGQLGRELVQQLSPEGRVVVALTRSQ---LDLTDPEALERLLRAIRPDAVVNTAAYTDVDGAESDPEKAFAVN 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  82 DKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVYATRGA- 160
Cdd:TIGR01214  78 ALAPQNLARAAARHGARLVHISTDYVFDGEGKRPYREDDATNPLNVYGQSKLAGEQAVRAAGPNALIVRTSWLYGGGGGr 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 161 NFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREELRnkaVAGTYHLVASGETSWYDYARFVFDVARANGVQ 240
Cdd:TIGR01214 158 NFVRTMLRLAGRGEELRVVDDQIGSPTYAGDLARVIAALLQRLAR---ARGVYHLANSGQVSWYEFAQAIFEEAGADGLL 234
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|
gi 1747825977 241 LAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGVERVV 290
Cdd:TIGR01214 235 LHPQEVKPISSKEYPRPARRPAYSVLDNTKLVKTLGLPLPHWREALRRYL 284
dTDP_HR_like_SDR_e cd05254
dTDP-6-deoxy-L-lyxo-4-hexulose reductase and related proteins, extended (e) SDRs; ...
2-286 6.62e-99

dTDP-6-deoxy-L-lyxo-4-hexulose reductase and related proteins, extended (e) SDRs; dTDP-6-deoxy-L-lyxo-4-hexulose reductase, an extended SDR, synthesizes dTDP-L-rhamnose from alpha-D-glucose-1-phosphate, providing the precursor of L-rhamnose, an essential cell wall component of many pathogenic bacteria. This subgroup has the characteristic active site tetrad and NADP-binding motif. This subgroup also contains human MAT2B, the regulatory subunit of methionine adenosyltransferase (MAT); MAT catalyzes S-adenosylmethionine synthesis. The human gene encoding MAT2B encodes two major splicing variants which are induced in human cell liver cancer and regulate HuR, an mRNA-binding protein which stabilizes the mRNA of several cyclins, to affect cell proliferation. Both MAT2B variants include this extended SDR domain. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187564 [Multi-domain]  Cd Length: 280  Bit Score: 291.84  E-value: 6.62e-99
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLG-EVVAVDYFDKEL-CGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDL 79
Cdd:cd05254     1 KILITGATGMLGRALVRLLKERGyEVIGTGRSRASLfKLDLTDPDAVEEAIRDYKPDVIINCAAYTRVDKCESDPELAYR 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  80 LNDKGVAVLAEESAKLGALMVHYSTDYVFDGEGSHYRqEEEATGPLNVYGETKRAGEIALEQANPRHLIFRTSWVY--AT 157
Cdd:cd05254    81 VNVLAPENLARAAKEVGARLIHISTDYVFDGKKGPYK-EEDAPNPLNVYGKSKLLGEVAVLNANPRYLILRTSWLYgeLK 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 158 RGANFAKTMLRLASEKETLSIINDQHGAPTGAELLADCTAIAIREelrnKAVAGTYHLVASGETSWYDYARFVFDVARan 237
Cdd:cd05254   160 NGENFVEWMLRLAAERKEVNVVHDQIGSPTYAADLADAILELIER----NSLTGIYHLSNSGPISKYEFAKLIADALG-- 233
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1747825977 238 gvqLAINEVNGIPTTAYPTPAKRPLNSRLSNEKFQRVFGVTLPDWRQGV 286
Cdd:cd05254   234 ---LPDVEIKPITSSEYPLPARRPANSSLDCSKLEELGGIKPPDWKEAL 279
WcaG COG0451
Nucleoside-diphosphate-sugar epimerase [Cell wall/membrane/envelope biogenesis];
2-290 9.68e-25

Nucleoside-diphosphate-sugar epimerase [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 440220 [Multi-domain]  Cd Length: 295  Bit Score: 100.82  E-value: 9.68e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLG-EVVAVDYFDKELC------------GDLTNLEGIAQTVRQVkpDVIVNAAAHTAVd 68
Cdd:COG0451     1 RILVTGGAGFIGSHLARRLLARGhEVVGLDRSPPGAAnlaalpgvefvrGDLRDPEALAAALAGV--DAVVHLAAPAGV- 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  69 kAESERELSDLLNDKGVAVLAEESAKLG-ALMVHYSTDYVFdGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRH- 146
Cdd:COG0451    78 -GEEDPDETLEVNVEGTLNLLEAARAAGvKRFVYASSSSVY-GDGEGPIDEDTPLRPVSPYGASKLAAELLARAYARRYg 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 147 ---LIFRTSWVYATRGANFAKTMLRLASEKETLSIIND--QHGAPTGAELLADCTAIAIReelRNKAVAGTYHLVASGET 221
Cdd:COG0451   156 lpvTILRPGNVYGPGDRGVLPRLIRRALAGEPVPVFGDgdQRRDFIHVDDVARAIVLALE---APAAPGGVYNVGGGEPV 232
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 222 SWYDYARFvfdVARANGVQLAINevngipttaYPTPAKRPLNSRLSNEKFQRVFGVTL-PDWRQGVERVV 290
Cdd:COG0451   233 TLRELAEA---IAEALGRPPEIV---------YPARPGDVRPRRADNSKARRELGWRPrTSLEEGLRETV 290
SDR_e cd08946
extended (e) SDRs; Extended SDRs are distinct from classical SDRs. In addition to the Rossmann ...
3-215 2.59e-16

extended (e) SDRs; Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 212494 [Multi-domain]  Cd Length: 200  Bit Score: 75.41  E-value: 2.59e-16
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   3 ILLIGKNGQVGWELQRSLSTLG-EVVAVDYFDkelcgdltnlegiaqtvrqvkpdVIVNAAAHTAVDKAESERELSDLLN 81
Cdd:cd08946     1 ILVTGGAGFIGSHLVRRLLERGhEVVVIDRLD-----------------------VVVHLAALVGVPASWDNPDEDFETN 57
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  82 DKGVAVLAEESAKLG-ALMVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANPRH----LIFRTSWVYA 156
Cdd:cd08946    58 VVGTLNLLEAARKAGvKRFVYASSASVYGSPEGLPEEEETPPRPLSPYGVSKLAAEHLLRSYGESYglpvVILRLANVYG 137
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1747825977 157 TRG----ANFAKTMLRLASEKETLSIINDQHG--APTGAELLADCTAIAIREELRnkaVAGTYHL 215
Cdd:cd08946   138 PGQrprlDGVVNDFIRRALEGKPLTVFGGGNQtrDFIHVDDVVRAILHALENPLE---GGGVYNI 199
Epimerase pfam01370
NAD dependent epimerase/dehydratase family; This family of proteins utilize NAD as a cofactor. ...
3-181 2.12e-11

NAD dependent epimerase/dehydratase family; This family of proteins utilize NAD as a cofactor. The proteins in this family use nucleotide-sugar substrates for a variety of chemical reactions.


Pssm-ID: 396097 [Multi-domain]  Cd Length: 238  Bit Score: 62.70  E-value: 2.12e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   3 ILLIGKNGQVGWELQRSLSTLG-EVVAVD----------YFDKELC-GDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKA 70
Cdd:pfam01370   1 ILVTGATGFIGSHLVRRLLEKGyEVIGLDrltsasntarLADLRFVeGDLTDRDALEKLLADVRPDAVIHLAAVGGVGAS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  71 ESERELSDLLNDKGVAVLAEESAKLGA-LMVHYSTDYVFdGEGSHYRQEEEA----TGPLNVYGETKRAGEIALEQANPR 145
Cdd:pfam01370  81 IEDPEDFIEANVLGTLNLLEAARKAGVkRFLFASSSEVY-GDGAEIPQEETTltgpLAPNSPYAAAKLAGEWLVLAYAAA 159
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*
gi 1747825977 146 H----LIFRTSWVY-----ATRGANFAKTMLRLASEKETLSIIND 181
Cdd:pfam01370 160 YglraVILRLFNVYgpgdnEGFVSRVIPALIRRILEGKPILLWGD 204
UDP_G4E_4_SDR_e cd05232
UDP-glucose 4 epimerase, subgroup 4, extended (e) SDRs; UDP-glucose 4 epimerase (aka ...
2-284 2.63e-08

UDP-glucose 4 epimerase, subgroup 4, extended (e) SDRs; UDP-glucose 4 epimerase (aka UDP-galactose-4-epimerase), is a homodimeric extended SDR. It catalyzes the NAD-dependent conversion of UDP-galactose to UDP-glucose, the final step in Leloir galactose synthesis. This subgroup is comprised of bacterial proteins, and includes the Staphylococcus aureus capsular polysaccharide Cap5N, which may have a role in the synthesis of UDP-N-acetyl-d-fucosamine. This subgroup has the characteristic active site tetrad and NAD-binding motif of the extended SDRs. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187543 [Multi-domain]  Cd Length: 303  Bit Score: 53.89  E-value: 2.63e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILLIGKNGQVGWELQRSLSTLGEVV--AVDYFDKELCGDLT--NLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELS 77
Cdd:cd05232     1 KVLVTGANGFIGRALVDKLLSRGEEVriAVRNAENAEPSVVLaeLPDIDSFTDLFLGVDAVVHLAARVHVMNDQGADPLS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  78 DL--LNDKGVAVLAEESAKLGA-LMVHYSTDYVF--DGEGSHYRQEEEATgPLNVYGETKRAGEIALEQANPRH----LI 148
Cdd:cd05232    81 DYrkVNTELTRRLARAAARQGVkRFVFLSSVKVNgeGTVGAPFDETDPPA-PQDAYGRSKLEAERALLELGASDgmevVI 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 149 FRTSWVYATRG-ANFAKTM--------LRLASEKETLSIINDQHgaptgaelLADCTAIAIREElrnKAVAGTYHlVASG 219
Cdd:cd05232   160 LRPPMVYGPGVrGNFARLMrlidrglpLPPGAVKNRRSLVSLDN--------LVDAIYLCISLP---KAANGTFL-VSDG 227
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1747825977 220 ETswYDYARFVFDVARANG---VQLAINEvnGIPTTAYPTPAKRPLNSRL------SNEKFQRVFGvtlpdWRQ 284
Cdd:cd05232   228 PP--VSTAELVDEIRRALGkptRLLPVPA--GLLRFAAKLLGKRAVIQRLfgslqyDPEKTQNELG-----WRP 292
SDR_e_a cd05226
Extended (e) and atypical (a) SDRs; Extended or atypical short-chain dehydrogenases/reductases ...
3-155 1.31e-06

Extended (e) and atypical (a) SDRs; Extended or atypical short-chain dehydrogenases/reductases (SDRs, aka tyrosine-dependent oxidoreductases) are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Atypical SDRs include biliverdin IX beta reductase (BVR-B,aka flavin reductase), NMRa (a negative transcriptional regulator of various fungi), progesterone 5-beta-reductase like proteins, phenylcoumaran benzylic ether and pinoresinol-lariciresinol reductases, phenylpropene synthases, eugenol synthase, triphenylmethane reductase, isoflavone reductases, and others. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187537 [Multi-domain]  Cd Length: 176  Bit Score: 47.78  E-value: 1.31e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   3 ILLIGKNGQVGWELQRSLSTLG-EVVAV----DYFDKEL-------CGDLTNLEGIAQTVRQVkpDVIVNAAAHTAVDKA 70
Cdd:cd05226     1 ILILGATGFIGRALARELLEQGhEVTLLvrntKRLSKEDqepvavvEGDLRDLDSLSDAVQGV--DVVIHLAGAPRDTRD 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  71 ESErelsdlLNDKGVAVLAEesaklgALMVHYSTDYVFDGEGSHYRQEEEATGPLNV--YGETKRAGEIALEQANPRHLI 148
Cdd:cd05226    79 FCE------VDVEGTRNVLE------AAKEAGVKHFIFISSLGAYGDLHEETEPSPSspYLAVKAKTEAVLREASLPYTI 146

                  ....*..
gi 1747825977 149 FRTSWVY 155
Cdd:cd05226   147 VRPGVIY 153
3b-HSD-NSDHL-like_SDR_e cd09813
human NSDHL (NAD(P)H steroid dehydrogenase-like protein)-like, extended (e) SDRs; This ...
37-151 3.54e-05

human NSDHL (NAD(P)H steroid dehydrogenase-like protein)-like, extended (e) SDRs; This subgroup includes human NSDHL and related proteins. These proteins have the characteristic active site tetrad of extended SDRs, and also have a close match to their NAD(P)-binding motif. Human NSDHL is a 3beta-hydroxysteroid dehydrogenase (3 beta-HSD) which functions in the cholesterol biosynthetic pathway. 3 beta-HSD catalyzes the oxidative conversion of delta 5-3 beta-hydroxysteroids to the delta 4-3-keto configuration; this activity is essential for the biosynthesis of all classes of hormonal steroids. Mutations in the gene encoding NSDHL cause CHILD syndrome (congenital hemidysplasia with ichthyosiform nevus and limb defects), an X-linked dominant, male-lethal trait. This subgroup also includes an unusual bifunctional [3beta-hydroxysteroid dehydrogenase (3b-HSD)/C-4 decarboxylase from Arabidopsis thaliana, and Saccharomyces cerevisiae ERG26, a 3b-HSD/C-4 decarboxylase, involved in the synthesis of ergosterol, the major sterol of yeast. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid sythase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187673 [Multi-domain]  Cd Length: 335  Bit Score: 44.66  E-value: 3.54e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  37 CGDLTNLEGIAQTVRQVKPDVIVnaaaHTAVDKAESERELSDLLNDKGVAVLAEESAKLG--ALMVHYSTDYVFDGEGSH 114
Cdd:cd09813    50 TGDLTDPQDLEKAFNEKGPNVVF----HTASPDHGSNDDLYYKVNVQGTRNVIEACRKCGvkKLVYTSSASVVFNGQDII 125
                          90       100       110
                  ....*....|....*....|....*....|....*....
gi 1747825977 115 YRQEEE--ATGPLNVYGETKRAGEIALEQANPRHLIFRT 151
Cdd:cd09813   126 NGDESLpyPDKHQDAYNETKALAEKLVLKANDPESGLLT 164
3b-HSD-like_SDR_e cd05241
3beta-hydroxysteroid dehydrogenases (3b-HSD)-like, extended (e) SDRs; Extended SDR family ...
34-143 8.13e-05

3beta-hydroxysteroid dehydrogenases (3b-HSD)-like, extended (e) SDRs; Extended SDR family domains belonging to this subgroup have the characteristic active site tetrad and a fairly well-conserved NAD(P)-binding motif. 3b-HSD catalyzes the NAD-dependent conversion of various steroids, such as pregnenolone to progesterone, or androstenediol to testosterone. This subgroup includes an unusual bifunctional 3b-HSD/C-4 decarboxylase from Arabidopsis thaliana, and Saccharomyces cerevisiae ERG26, a 3b-HSD/C-4 decarboxylase, involved in the synthesis of ergosterol, the major sterol of yeast. It also includes human 3 beta-HSD/HSD3B1 and C(27) 3beta-HSD/ [3beta-hydroxy-delta(5)-C(27)-steroid oxidoreductase; HSD3B7]. C(27) 3beta-HSD/HSD3B7 is a membrane-bound enzyme of the endoplasmic reticulum, that catalyzes the isomerization and oxidation of 7alpha-hydroxylated sterol intermediates, an early step in bile acid biosynthesis. Mutations in the human NSDHL (NAD(P)H steroid dehydrogenase-like protein) cause CHILD syndrome (congenital hemidysplasia with ichthyosiform nevus and limb defects), an X-linked dominant, male-lethal trait. Mutations in the human gene encoding C(27) 3beta-HSD underlie a rare autosomal recessive form of neonatal cholestasis. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid sythase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187552 [Multi-domain]  Cd Length: 331  Bit Score: 43.57  E-value: 8.13e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  34 KELCGDLTNLEGIAQTVRQVkpDVIVNAAAhtAVDKAeSERELSDLLNDKGVAVLAEESAKLGA-LMVHYSTDYVFdGEG 112
Cdd:cd05241    48 EFLKGDITDRNDVEQALSGA--DCVFHTAA--IVPLA-GPRDLYWEVNVGGTQNVLDACQRCGVqKFVYTSSSSVI-FGG 121
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1747825977 113 SHYRQEEEATG----PLNVYGETKRAGEIALEQAN 143
Cdd:cd05241   122 QNIHNGDETLPypplDSDMYAETKAIAEIIVLEAN 156
dTDP_GD_SDR_e cd05246
dTDP-D-glucose 4,6-dehydratase, extended (e) SDRs; This subgroup contains dTDP-D-glucose 4, ...
38-136 9.16e-05

dTDP-D-glucose 4,6-dehydratase, extended (e) SDRs; This subgroup contains dTDP-D-glucose 4,6-dehydratase and related proteins, members of the extended-SDR family, with the characteristic Rossmann fold core region, active site tetrad and NAD(P)-binding motif. dTDP-D-glucose 4,6-dehydratase is closely related to other sugar epimerases of the SDR family. dTDP-D-dlucose 4,6,-dehydratase catalyzes the second of four steps in the dTDP-L-rhamnose pathway (the dehydration of dTDP-D-glucose to dTDP-4-keto-6-deoxy-D-glucose) in the synthesis of L-rhamnose, a cell wall component of some pathogenic bacteria. In many gram negative bacteria, L-rhamnose is an important constituent of lipopoylsaccharide O-antigen. The larger N-terminal portion of dTDP-D-Glucose 4,6-dehydratase forms a Rossmann fold NAD-binding domain, while the C-terminus binds the sugar substrate. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187557 [Multi-domain]  Cd Length: 315  Bit Score: 43.31  E-value: 9.16e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  38 GDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDLLNDKGVAVLAEESAKLGA-LMVHYSTDYVF-DGEGSHY 115
Cdd:cd05246    58 GDICDAELVDRLFEEEKIDAVIHFAAESHVDRSISDPEPFIRTNVLGTYTLLEAARKYGVkRFVHISTDEVYgDLLDDGE 137
                          90       100
                  ....*....|....*....|.
gi 1747825977 116 RQEEEATGPLNVYGETKRAGE 136
Cdd:cd05246   138 FTETSPLAPTSPYSASKAAAD 158
Gne_like_SDR_e cd05238
Escherichia coli Gne (a nucleoside-diphosphate-sugar 4-epimerase)-like, extended (e) SDRs; ...
1-177 1.48e-04

Escherichia coli Gne (a nucleoside-diphosphate-sugar 4-epimerase)-like, extended (e) SDRs; Nucleoside-diphosphate-sugar 4-epimerase has the characteristic active site tetrad and NAD-binding motif of the extended SDR, and is related to more specifically defined epimerases such as UDP-glucose 4 epimerase (aka UDP-galactose-4-epimerase), which catalyzes the NAD-dependent conversion of UDP-galactose to UDP-glucose, the final step in Leloir galactose synthesis. This subgroup includes Escherichia coli 055:H7 Gne, a UDP-GlcNAc 4-epimerase, essential for O55 antigen synthesis. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187549 [Multi-domain]  Cd Length: 305  Bit Score: 42.76  E-value: 1.48e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGEVVAVDYFDK-------------ELCGDLTNlEGIAQTVRQVKPDVIVNAAAHtaV 67
Cdd:cd05238     1 MKVLITGASGFVGQRLAERLLSDVPNERLILIDVvspkapsgaprvtQIAGDLAV-PALIEALANGRPDVVFHLAAI--V 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  68 D-KAESERELSDLLNDKGVAVLAEESAKLGAL--MVHYSTDYVFDGEGSHYRQEEEATGPLNVYGETKRAGEIALEQANP 144
Cdd:cd05238    78 SgGAEADFDLGYRVNVDGTRNLLEALRKNGPKprFVFTSSLAVYGLPLPNPVTDHTALDPASSYGAQKAMCELLLNDYSR 157
                         170       180       190
                  ....*....|....*....|....*....|....*...
gi 1747825977 145 RH----LIFRTSWVYATRGA-NFAKTMLRLASEKETLS 177
Cdd:cd05238   158 RGfvdgRTLRLPTVCVRPGRpNKAASAFASTIIREPLV 195
NDUFA9_like_SDR_a cd05271
NADH dehydrogenase (ubiquinone) 1 alpha subcomplex, subunit 9, 39 kDa, (NDUFA9) -like, ...
1-235 4.17e-04

NADH dehydrogenase (ubiquinone) 1 alpha subcomplex, subunit 9, 39 kDa, (NDUFA9) -like, atypical (a) SDRs; This subgroup of extended SDR-like proteins are atypical SDRs. They have a glycine-rich NAD(P)-binding motif similar to the typical SDRs, GXXGXXG, and have the YXXXK active site motif (though not the other residues of the SDR tetrad). Members identified include NDUFA9 (mitochondrial) and putative nucleoside-diphosphate-sugar epimerase. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Atypical SDRs include biliverdin IX beta reductase (BVR-B,aka flavin reductase), NMRa (a negative transcriptional regulator of various fungi), progesterone 5-beta-reductase like proteins, phenylcoumaran benzylic ether and pinoresinol-lariciresinol reductases, phenylpropene synthases, eugenol synthase, triphenylmethane reductase, isoflavone reductases, and others. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. In addition to the Rossmann fold core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids, and typically have a TGXXGXXG cofactor binding motif. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187579 [Multi-domain]  Cd Length: 273  Bit Score: 41.08  E-value: 4.17e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLG-EVVAV----DYFDKELC-----------GDLTNLEGIAQTVRQVkpDVIVNAAA- 63
Cdd:cd05271     1 MVVTVFGATGFIGRYVVNRLAKRGsQVIVPyrceAYARRLLVmgdlgqvlfveFDLRDDESIRKALEGS--DVVINLVGr 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  64 --HTAVDKAEserelsdLLNDKGVAVLAEESAKLGALM-VHYStdyvfdgegsHYRQEEEATGPlnvYGETKRAGEIALE 140
Cdd:cd05271    79 lyETKNFSFE-------DVHVEGPERLAKAAKEAGVERlIHIS----------ALGADANSPSK---YLRSKAEGEEAVR 138
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977 141 QANPRHLIFRTSWVYAtRGANFaktMLRLASEKETLSIIndqHGAPTGAEL--------LADCTAIAIREElrnKAVAGT 212
Cdd:cd05271   139 EAFPEATIVRPSVVFG-REDRF---LNRFAKLLAFLPFP---PLIGGGQTKfqpvyvgdVAEAIARALKDP---ETEGKT 208
                         250       260
                  ....*....|....*....|...
gi 1747825977 213 YHLVASGETSWYDYARFVFDVAR 235
Cdd:cd05271   209 YELVGPKVYTLAELVELLRRLGG 231
Lys2b COG3320
Thioester reductase domain of alpha aminoadipate reductase Lys2 and NRPSs [Secondary ...
36-150 5.16e-04

Thioester reductase domain of alpha aminoadipate reductase Lys2 and NRPSs [Secondary metabolites biosynthesis, transport and catabolism]; Thioester reductase domain of alpha aminoadipate reductase Lys2 and NRPSs is part of the Pathway/BioSystem: Lysine biosynthesis


Pssm-ID: 442549 [Multi-domain]  Cd Length: 265  Bit Score: 40.96  E-value: 5.16e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  36 LCGDLT---------NLEGIAQTVrqvkpDVIVNAAAHtaVDKAESERELsDLLNDKGVAVLAEESAKLGALMVHY-STD 105
Cdd:COG3320    65 VAGDLTqprlglseaEFQELAEEV-----DAIVHLAAL--VNLVAPYSEL-RAVNVLGTREVLRLAATGRLKPFHYvSTI 136
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1747825977 106 YVFDGEGSHYRQEE----EATGPLNVYGETKRAGEIALEQANPRHL---IFR 150
Cdd:COG3320   137 AVAGPADRSGVFEEddldEGQGFANGYEQSKWVAEKLVREARERGLpvtIYR 188
PRK07578 PRK07578
short chain dehydrogenase; Provisional
1-62 6.17e-04

short chain dehydrogenase; Provisional


Pssm-ID: 236057 [Multi-domain]  Cd Length: 199  Bit Score: 40.18  E-value: 6.17e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGEVVAVDYFDKELCGDLTNLEGIAQTVRQVKP-DVIVNAA 62
Cdd:PRK07578    1 MKILVIGASGTIGRAVVAELSKRHEVITAGRSSGDVQVDITDPASIRALFEKVGKvDAVVSAA 63
PLN02260 PLN02260
probable rhamnose biosynthetic enzyme
1-132 4.36e-03

probable rhamnose biosynthetic enzyme


Pssm-ID: 215146 [Multi-domain]  Cd Length: 668  Bit Score: 38.57  E-value: 4.36e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLGevVAVDYFDkelcGDLTNLEGIAQTVRQVKPDVIVNAAAHTA---VDKAESERELS 77
Cdd:PLN02260  381 LKFLIYGRTGWIGGLLGKLCEKQG--IAYEYGK----GRLEDRSSLLADIRNVKPTHVFNAAGVTGrpnVDWCESHKVET 454
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1747825977  78 DLLNDKGVAVLAEESAKLGALMVHYSTDYVFD-------GEGSHYRQEEEATGPLNVYGETK 132
Cdd:PLN02260  455 IRANVVGTLTLADVCRENGLLMMNFATGCIFEydakhpeGSGIGFKEEDKPNFTGSFYSKTK 516
CDP_TE_SDR_e cd05258
CDP-tyvelose 2-epimerase, extended (e) SDRs; CDP-tyvelose 2-epimerase is a tetrameric SDR that ...
1-122 5.66e-03

CDP-tyvelose 2-epimerase, extended (e) SDRs; CDP-tyvelose 2-epimerase is a tetrameric SDR that catalyzes the conversion of CDP-D-paratose to CDP-D-tyvelose, the last step in tyvelose biosynthesis. This subgroup is a member of the extended SDR subfamily, with a characteristic active site tetrad and NAD-binding motif. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187568 [Multi-domain]  Cd Length: 337  Bit Score: 37.65  E-value: 5.66e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   1 MKILLIGKNGQVGWELQRSLSTLG-EVVAVD-----YFDKELC---------------GDLTNLEGIAQTVRQvkPDVIV 59
Cdd:cd05258     1 MRVLITGGAGFIGSNLARFFLKQGwEVIGFDnlmrrGSFGNLAwlkanredggvrfvhGDIRNRNDLEDLFED--IDLII 78
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1747825977  60 NAAAHTAVDKAESERELSDLLNDKG---VAVLAEESAKlGALMVHYSTDYVFDGEGSHYRQEEEAT 122
Cdd:cd05258    79 HTAAQPSVTTSASSPRLDFETNALGtlnVLEAARQHAP-NAPFIFTSTNKVYGDLPNYLPLEELET 143
GDP_Man_Dehyd pfam16363
GDP-mannose 4,6 dehydratase;
5-136 5.80e-03

GDP-mannose 4,6 dehydratase;


Pssm-ID: 465104 [Multi-domain]  Cd Length: 327  Bit Score: 37.91  E-value: 5.80e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   5 LI-GKNGQVGWELQRSLSTLG-EVVAVDYFDKELC--------------------GDLTNLEGIAQTVRQVKPDVIVNAA 62
Cdd:pfam16363   1 LItGITGQDGSYLAELLLEKGyEVHGIVRRSSSFNtgrlehlyddhlngnlvlhyGDLTDSSNLVRLLAEVQPDEIYNLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  63 A----HTAVDKAESERElSDLLndkGVAVLAEESAKLG----ALMVHYSTDYVFdGEGSHYRQEEEA-TGPLNVYGETKR 133
Cdd:pfam16363  81 AqshvDVSFEQPEYTAD-TNVL---GTLRLLEAIRSLGlekkVRFYQASTSEVY-GKVQEVPQTETTpFYPRSPYAAAKL 155

                  ...
gi 1747825977 134 AGE 136
Cdd:pfam16363 156 YAD 158
UDP_invert_4-6DH_SDR_e cd05237
UDP-Glcnac (UDP-linked N-acetylglucosamine) inverting 4,6-dehydratase, extended (e) SDRs; ...
2-136 7.59e-03

UDP-Glcnac (UDP-linked N-acetylglucosamine) inverting 4,6-dehydratase, extended (e) SDRs; UDP-Glcnac inverting 4,6-dehydratase was identified in Helicobacter pylori as the hexameric flaA1 gene product (FlaA1). FlaA1 is hexameric, possesses UDP-GlcNAc-inverting 4,6-dehydratase activity, and catalyzes the first step in the creation of a pseudaminic acid derivative in protein glycosylation. Although this subgroup has the NADP-binding motif characteristic of extended SDRs, its members tend to have a Met substituted for the active site Tyr found in most SDR families. Extended SDRs are distinct from classical SDRs. In addition to the Rossmann fold (alpha/beta folding pattern with a central beta-sheet) core region typical of all SDRs, extended SDRs have a less conserved C-terminal extension of approximately 100 amino acids. Extended SDRs are a diverse collection of proteins, and include isomerases, epimerases, oxidoreductases, and lyases; they typically have a TGXXGXXG cofactor binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold, an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Sequence identity between different SDR enzymes is typically in the 15-30% range; they catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase numbering). In addition to the Tyr and Lys, there is often an upstream Ser and/or an Asn, contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Atypical SDRs generally lack the catalytic residues characteristic of the SDRs, and their glycine-rich NAD(P)-binding motif is often different from the forms normally seen in classical or extended SDRs. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.


Pssm-ID: 187548 [Multi-domain]  Cd Length: 287  Bit Score: 37.21  E-value: 7.59e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977   2 KILL--IGKNGQvgWELQRSLSTLGEVVAVDYFDkelcGDLTNLEGIAQTVRQVKPDVIVNAAAHTAVDKAESERELSDL 79
Cdd:cd05237    29 KLIVfdRDENKL--HELVRELRSRFPHDKLRFII----GDVRDKERLRRAFKERGPDIVFHAAALKHVPSMEDNPEEAIK 102
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1747825977  80 LNDKGVAVLAEESAKLGA---LMVhySTDyvfdgegshyrqeeEATGPLNVYGETKRAGE 136
Cdd:cd05237   103 TNVLGTKNVIDAAIENGVekfVCI--STD--------------KAVNPVNVMGATKRVAE 146
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
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