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Conserved domains on  [gi|1774723412|gb|QGH58989|]
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RNA-directed RNA polymerase [Rotavirus B]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
ps-ssRNAv_RdRp-like super family cl40470
conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense ...
148-739 6.00e-46

conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense single-stranded RNA [(+)ssRNA] viruses and closely related viruses; This family contains the catalytic core domain of RdRp of RNA viruses which belong to Group IV of the Baltimore classification system, and are a group of related viruses that have positive-sense (+), single-stranded (ss) genomes made of ribonucleic acid (RNA). RdRp (also known as RNA replicase) catalyzes the replication of RNA from an RNA template; specifically, it catalyzes the synthesis of the RNA strand complementary to a given RNA template. The Baltimore Classification is divided into 7 classes, 3 of which include RNA viruses: Group IV (+) RNA viruses, Group III double-stranded (ds) RNA viruses, and Group V negative-sense (-) RNA viruses. Baltimore groups of viruses differ with respect to the nature of their genome (i.e., the nucleic acid form that is packaged into virions) and correspond to distinct strategies of genome replication and expression. (+) viral RNA is similar to mRNA and thus can be immediately translated by the host cell. (+)ssRNA viruses can also produce (+) copies of the genome from (-) strands of an intermediate dsRNA genome. This acts as both a transcription and a replication process since the replicated RNA is also mRNA. RdRps belong to the expansive class of polymerases containing so-called palm catalytic domains along with the accessory fingers and thumb domains. All RdRps also have six conserved structural motifs (A-F), located in its majority in the palm subdomain (A-E motifs) and the F motif is located on the finger subdomain. All these motifs have been shown to be implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides. In addition to Group IV viruses, this model also includes Picobirnaviruses (PBVs), members of the family Picobirnaviridae of dsRNA viruses (Baltimore classification Group III), which are bi-segmented dsRNA viruses. The phylogenetic tree of the RdRps of RNA viruses (realm Riboviria) showed that picobirnaviruses are embedded in the branch of diverse (+)RNA viruses; sometimes they are collectively referred to as the picornavirus supergroup. RdRps of members of the family Permutatetraviridae, a distinct group of RNA viruses that encompass a circular permutation within the RdRp palm domain, are not included in this model.


The actual alignment was detected with superfamily member pfam02123:

Pssm-ID: 477363  Cd Length: 465  Bit Score: 172.64  E-value: 6.00e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  148 FIRDNEIEILDTGDHKW-----KSDTLQDLNPNYYHRTHTLIGSILFAVqsrlifyTEDKKEAAFYLLKVIEQCYSQGYL 222
Cdd:pfam02123    4 LLLTKEFELELFPLKSWpaageKANAIARSLQSYLPTLAFWLGRFLSAV-------TPYNDYVAAILLYTIEAYAASKPG 76
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  223 ElsrnrkwshtidelrksnFRLYNAKVIHAacamitllhanPIDVEFLCQIIAVYQIIPSHAAKLLSSPMTLYVGVATfp 302
Cdd:pfam02123   77 G------------------YRLRRAAWANS-----------SDFAKDLSDILKSLGLNASSPGPKLVEGNPLLGRGVT-- 125
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  303 skqvvstgnasecaptsitnnvfvaesqKNGWIEAYESDPLNhskmlklmnsnltTNVTFSLIFNCFSATFHVghrvdna 382
Cdd:pfam02123  126 ----------------------------NVDWEEEAKNRVDL-------------AVVCRLVLLPMEELRAHI------- 157
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  383 qDAITDQVSVqytsdvDREMYDTYyyklKKMLKDEIIQYVEEHISKKYKDVTAESLSVFANSSNgfvkeveFIDRKIKTT 462
Cdd:pfam02123  158 -DAVLDELVV------RRGLCDPI----RLFVKNEPLWCVNGHPDHKLREGRLRLLSSVSLVDQ-------LVRRMLFEP 219
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  463 KKILHLDSDlvSNTYSDITKSLSNGIpmgTRNVPARQTRGIFILPWQVAAVQHTIAESLYKRAKKgayGGAFAEAYTAKT 542
Cdd:pfam02123  220 QNNNEIAWW--GSVPSKPSMKLEHGK---SRAIYACDTRSYLAFEYLLAPVEKAWANKSVILNPG---EGDISGFDWSVQ 291
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  543 AsltygvlaedtSKAIKIILYTDVSQWDaSQHNTEPYRSAWINAIRearselrwNYSDEPQVLGMNVLDNMIKIQEYLLN 622
Cdd:pfam02123  292 D-----------WKRGGVSLMLDYDDFN-SQHSTESMRAVFERLRR--------RLPDEPAEAADWLVCSMDSMYQLSDG 351
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  623 SNLVVSSPGSsrptkiiryhgVASGEKTTKIGNSFANVALIETVLDYTKqeiPDLEVSHLrvdGDDNVVVHNTSCPIEKl 702
Cdd:pfam02123  352 TLLAQRVPGT-----------LKSGHRATTFINSVLNCAYAELAGAPWA---DVPTSIHM---GDDVLEGLRTPADATS- 413
                          570       580       590
                   ....*....|....*....|....*....|....*....
gi 1774723412  703 qiiIKNNYSKLNARVKALASFTGLEMAK--RFVICGKIF 739
Cdd:pfam02123  414 ---LLDKYARLGFKVNPSKQSVGHTIAEflRVAFCSHEV 449
DotY_NTD super family cl45571
N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of ...
57-96 8.53e-03

N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of membrane-embedded T4 coupling complex (T4CC), which consists of the DotL ATPase, the DotM and DotN proteins,and DotY and DotZ. The DotLMNYZ hetero-pentamer and plays an essential role in the recruitment and delivery of effectors to the Type IV secretion (T4S) machinery in Legionella pneumophila, a bacterial pathogen that utilizes a T4S system to inject effector proteins into human macrophages. This model corresponds to the N-terminal domain of DotY, which is responsible for interaction with DotZ. DotY and DotZ are integral parts of the T4CC and play significant roles in the translocation of effectors. They are unique to the Legionella genus.


The actual alignment was detected with superfamily member cd22643:

Pssm-ID: 439348  Cd Length: 72  Bit Score: 36.10  E-value: 8.53e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|
gi 1774723412   57 LLKQFKGKLKKSKTLDEKIEVLLRLRYFTVYVEDKSDKRS 96
Cdd:cd22643     25 LVQQFEQILEKAGKLEEAQDVLEAVDEFAENVHLQRSSRG 64
 
Name Accession Description Interval E-value
RdRP_4 pfam02123
Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins ...
148-739 6.00e-46

Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins (RdRPs) from Luteovirus, Totivirus and Rotavirus.


Pssm-ID: 280316  Cd Length: 465  Bit Score: 172.64  E-value: 6.00e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  148 FIRDNEIEILDTGDHKW-----KSDTLQDLNPNYYHRTHTLIGSILFAVqsrlifyTEDKKEAAFYLLKVIEQCYSQGYL 222
Cdd:pfam02123    4 LLLTKEFELELFPLKSWpaageKANAIARSLQSYLPTLAFWLGRFLSAV-------TPYNDYVAAILLYTIEAYAASKPG 76
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  223 ElsrnrkwshtidelrksnFRLYNAKVIHAacamitllhanPIDVEFLCQIIAVYQIIPSHAAKLLSSPMTLYVGVATfp 302
Cdd:pfam02123   77 G------------------YRLRRAAWANS-----------SDFAKDLSDILKSLGLNASSPGPKLVEGNPLLGRGVT-- 125
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  303 skqvvstgnasecaptsitnnvfvaesqKNGWIEAYESDPLNhskmlklmnsnltTNVTFSLIFNCFSATFHVghrvdna 382
Cdd:pfam02123  126 ----------------------------NVDWEEEAKNRVDL-------------AVVCRLVLLPMEELRAHI------- 157
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  383 qDAITDQVSVqytsdvDREMYDTYyyklKKMLKDEIIQYVEEHISKKYKDVTAESLSVFANSSNgfvkeveFIDRKIKTT 462
Cdd:pfam02123  158 -DAVLDELVV------RRGLCDPI----RLFVKNEPLWCVNGHPDHKLREGRLRLLSSVSLVDQ-------LVRRMLFEP 219
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  463 KKILHLDSDlvSNTYSDITKSLSNGIpmgTRNVPARQTRGIFILPWQVAAVQHTIAESLYKRAKKgayGGAFAEAYTAKT 542
Cdd:pfam02123  220 QNNNEIAWW--GSVPSKPSMKLEHGK---SRAIYACDTRSYLAFEYLLAPVEKAWANKSVILNPG---EGDISGFDWSVQ 291
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  543 AsltygvlaedtSKAIKIILYTDVSQWDaSQHNTEPYRSAWINAIRearselrwNYSDEPQVLGMNVLDNMIKIQEYLLN 622
Cdd:pfam02123  292 D-----------WKRGGVSLMLDYDDFN-SQHSTESMRAVFERLRR--------RLPDEPAEAADWLVCSMDSMYQLSDG 351
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  623 SNLVVSSPGSsrptkiiryhgVASGEKTTKIGNSFANVALIETVLDYTKqeiPDLEVSHLrvdGDDNVVVHNTSCPIEKl 702
Cdd:pfam02123  352 TLLAQRVPGT-----------LKSGHRATTFINSVLNCAYAELAGAPWA---DVPTSIHM---GDDVLEGLRTPADATS- 413
                          570       580       590
                   ....*....|....*....|....*....|....*....
gi 1774723412  703 qiiIKNNYSKLNARVKALASFTGLEMAK--RFVICGKIF 739
Cdd:pfam02123  414 ---LLDKYARLGFKVNPSKQSVGHTIAEflRVAFCSHEV 449
seadorna_RNAP TIGR04234
seadornavirus RNA-directed RNA polymerase; Members of this protein family are the ...
565-692 2.11e-03

seadornavirus RNA-directed RNA polymerase; Members of this protein family are the seadornavirus VP1 protein, the RNA-directed RNA polymerase.


Pssm-ID: 275072  Cd Length: 1144  Bit Score: 42.51  E-value: 2.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  565 DVSQWDASQHNTepyrsawinaIREARSELRWNYSDEpqvLGMNVLDNMIKIQEYL---LNSNLVVSSPGSSRPTK---- 637
Cdd:TIGR04234  566 DFSQFDSSQGGR----------ISKAHADGVRRVANE---YFPGTNTDLSDVLDLLelsMSKFLYITSESYERPLKyksd 632
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1774723412  638 --IIRYHGVASGEKTTKIGNSFANVALIETVLD-----YTKQEIPDLEVSHLRVDGDDNVVV 692
Cdd:TIGR04234  633 giVAEAAGVKSGELTTQLRNTVTNKAHTTQYLEtynrtKVRQGFRKIELVQENIVGDDKNVI 694
DotY_NTD cd22643
N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of ...
57-96 8.53e-03

N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of membrane-embedded T4 coupling complex (T4CC), which consists of the DotL ATPase, the DotM and DotN proteins,and DotY and DotZ. The DotLMNYZ hetero-pentamer and plays an essential role in the recruitment and delivery of effectors to the Type IV secretion (T4S) machinery in Legionella pneumophila, a bacterial pathogen that utilizes a T4S system to inject effector proteins into human macrophages. This model corresponds to the N-terminal domain of DotY, which is responsible for interaction with DotZ. DotY and DotZ are integral parts of the T4CC and play significant roles in the translocation of effectors. They are unique to the Legionella genus.


Pssm-ID: 439348  Cd Length: 72  Bit Score: 36.10  E-value: 8.53e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|
gi 1774723412   57 LLKQFKGKLKKSKTLDEKIEVLLRLRYFTVYVEDKSDKRS 96
Cdd:cd22643     25 LVQQFEQILEKAGKLEEAQDVLEAVDEFAENVHLQRSSRG 64
ps-ssRNAv_RdRp-like cd23167
conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense ...
642-694 9.49e-03

conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense single-stranded RNA [(+)ssRNA] viruses and closely related viruses; This family contains the catalytic core domain of RdRp of RNA viruses which belong to Group IV of the Baltimore classification system, and are a group of related viruses that have positive-sense (+), single-stranded (ss) genomes made of ribonucleic acid (RNA). RdRp (also known as RNA replicase) catalyzes the replication of RNA from an RNA template; specifically, it catalyzes the synthesis of the RNA strand complementary to a given RNA template. The Baltimore Classification is divided into 7 classes, 3 of which include RNA viruses: Group IV (+) RNA viruses, Group III double-stranded (ds) RNA viruses, and Group V negative-sense (-) RNA viruses. Baltimore groups of viruses differ with respect to the nature of their genome (i.e., the nucleic acid form that is packaged into virions) and correspond to distinct strategies of genome replication and expression. (+) viral RNA is similar to mRNA and thus can be immediately translated by the host cell. (+)ssRNA viruses can also produce (+) copies of the genome from (-) strands of an intermediate dsRNA genome. This acts as both a transcription and a replication process since the replicated RNA is also mRNA. RdRps belong to the expansive class of polymerases containing so-called palm catalytic domains along with the accessory fingers and thumb domains. All RdRps also have six conserved structural motifs (A-F), located in its majority in the palm subdomain (A-E motifs) and the F motif is located on the finger subdomain. All these motifs have been shown to be implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides. In addition to Group IV viruses, this model also includes Picobirnaviruses (PBVs), members of the family Picobirnaviridae of dsRNA viruses (Baltimore classification Group III), which are bi-segmented dsRNA viruses. The phylogenetic tree of the RdRps of RNA viruses (realm Riboviria) showed that picobirnaviruses are embedded in the branch of diverse (+)RNA viruses; sometimes they are collectively referred to as the picornavirus supergroup. RdRps of members of the family Permutatetraviridae, a distinct group of RNA viruses that encompass a circular permutation within the RdRp palm domain, are not included in this model.


Pssm-ID: 438017 [Multi-domain]  Cd Length: 73  Bit Score: 36.16  E-value: 9.49e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1774723412  642 HGVASGEKTTKIGNSFANVALIETVLDYTKQEIPDLEVSHLRVDGDDNVVVHN 694
Cdd:cd23167     21 AGQPSGSPNTSADNSLINLLLARLALRKACGRAEFLNSVGILVYGDDSLVSVP 73
 
Name Accession Description Interval E-value
RdRP_4 pfam02123
Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins ...
148-739 6.00e-46

Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins (RdRPs) from Luteovirus, Totivirus and Rotavirus.


Pssm-ID: 280316  Cd Length: 465  Bit Score: 172.64  E-value: 6.00e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  148 FIRDNEIEILDTGDHKW-----KSDTLQDLNPNYYHRTHTLIGSILFAVqsrlifyTEDKKEAAFYLLKVIEQCYSQGYL 222
Cdd:pfam02123    4 LLLTKEFELELFPLKSWpaageKANAIARSLQSYLPTLAFWLGRFLSAV-------TPYNDYVAAILLYTIEAYAASKPG 76
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  223 ElsrnrkwshtidelrksnFRLYNAKVIHAacamitllhanPIDVEFLCQIIAVYQIIPSHAAKLLSSPMTLYVGVATfp 302
Cdd:pfam02123   77 G------------------YRLRRAAWANS-----------SDFAKDLSDILKSLGLNASSPGPKLVEGNPLLGRGVT-- 125
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  303 skqvvstgnasecaptsitnnvfvaesqKNGWIEAYESDPLNhskmlklmnsnltTNVTFSLIFNCFSATFHVghrvdna 382
Cdd:pfam02123  126 ----------------------------NVDWEEEAKNRVDL-------------AVVCRLVLLPMEELRAHI------- 157
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  383 qDAITDQVSVqytsdvDREMYDTYyyklKKMLKDEIIQYVEEHISKKYKDVTAESLSVFANSSNgfvkeveFIDRKIKTT 462
Cdd:pfam02123  158 -DAVLDELVV------RRGLCDPI----RLFVKNEPLWCVNGHPDHKLREGRLRLLSSVSLVDQ-------LVRRMLFEP 219
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  463 KKILHLDSDlvSNTYSDITKSLSNGIpmgTRNVPARQTRGIFILPWQVAAVQHTIAESLYKRAKKgayGGAFAEAYTAKT 542
Cdd:pfam02123  220 QNNNEIAWW--GSVPSKPSMKLEHGK---SRAIYACDTRSYLAFEYLLAPVEKAWANKSVILNPG---EGDISGFDWSVQ 291
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  543 AsltygvlaedtSKAIKIILYTDVSQWDaSQHNTEPYRSAWINAIRearselrwNYSDEPQVLGMNVLDNMIKIQEYLLN 622
Cdd:pfam02123  292 D-----------WKRGGVSLMLDYDDFN-SQHSTESMRAVFERLRR--------RLPDEPAEAADWLVCSMDSMYQLSDG 351
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  623 SNLVVSSPGSsrptkiiryhgVASGEKTTKIGNSFANVALIETVLDYTKqeiPDLEVSHLrvdGDDNVVVHNTSCPIEKl 702
Cdd:pfam02123  352 TLLAQRVPGT-----------LKSGHRATTFINSVLNCAYAELAGAPWA---DVPTSIHM---GDDVLEGLRTPADATS- 413
                          570       580       590
                   ....*....|....*....|....*....|....*....
gi 1774723412  703 qiiIKNNYSKLNARVKALASFTGLEMAK--RFVICGKIF 739
Cdd:pfam02123  414 ---LLDKYARLGFKVNPSKQSVGHTIAEflRVAFCSHEV 449
seadorna_RNAP TIGR04234
seadornavirus RNA-directed RNA polymerase; Members of this protein family are the ...
565-692 2.11e-03

seadornavirus RNA-directed RNA polymerase; Members of this protein family are the seadornavirus VP1 protein, the RNA-directed RNA polymerase.


Pssm-ID: 275072  Cd Length: 1144  Bit Score: 42.51  E-value: 2.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1774723412  565 DVSQWDASQHNTepyrsawinaIREARSELRWNYSDEpqvLGMNVLDNMIKIQEYL---LNSNLVVSSPGSSRPTK---- 637
Cdd:TIGR04234  566 DFSQFDSSQGGR----------ISKAHADGVRRVANE---YFPGTNTDLSDVLDLLelsMSKFLYITSESYERPLKyksd 632
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1774723412  638 --IIRYHGVASGEKTTKIGNSFANVALIETVLD-----YTKQEIPDLEVSHLRVDGDDNVVV 692
Cdd:TIGR04234  633 giVAEAAGVKSGELTTQLRNTVTNKAHTTQYLEtynrtKVRQGFRKIELVQENIVGDDKNVI 694
DotY_NTD cd22643
N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of ...
57-96 8.53e-03

N-terminal domain of Legionella pneumophila DotY and similar proteins; DotY is a component of membrane-embedded T4 coupling complex (T4CC), which consists of the DotL ATPase, the DotM and DotN proteins,and DotY and DotZ. The DotLMNYZ hetero-pentamer and plays an essential role in the recruitment and delivery of effectors to the Type IV secretion (T4S) machinery in Legionella pneumophila, a bacterial pathogen that utilizes a T4S system to inject effector proteins into human macrophages. This model corresponds to the N-terminal domain of DotY, which is responsible for interaction with DotZ. DotY and DotZ are integral parts of the T4CC and play significant roles in the translocation of effectors. They are unique to the Legionella genus.


Pssm-ID: 439348  Cd Length: 72  Bit Score: 36.10  E-value: 8.53e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|
gi 1774723412   57 LLKQFKGKLKKSKTLDEKIEVLLRLRYFTVYVEDKSDKRS 96
Cdd:cd22643     25 LVQQFEQILEKAGKLEEAQDVLEAVDEFAENVHLQRSSRG 64
ps-ssRNAv_RdRp-like cd23167
conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense ...
642-694 9.49e-03

conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense single-stranded RNA [(+)ssRNA] viruses and closely related viruses; This family contains the catalytic core domain of RdRp of RNA viruses which belong to Group IV of the Baltimore classification system, and are a group of related viruses that have positive-sense (+), single-stranded (ss) genomes made of ribonucleic acid (RNA). RdRp (also known as RNA replicase) catalyzes the replication of RNA from an RNA template; specifically, it catalyzes the synthesis of the RNA strand complementary to a given RNA template. The Baltimore Classification is divided into 7 classes, 3 of which include RNA viruses: Group IV (+) RNA viruses, Group III double-stranded (ds) RNA viruses, and Group V negative-sense (-) RNA viruses. Baltimore groups of viruses differ with respect to the nature of their genome (i.e., the nucleic acid form that is packaged into virions) and correspond to distinct strategies of genome replication and expression. (+) viral RNA is similar to mRNA and thus can be immediately translated by the host cell. (+)ssRNA viruses can also produce (+) copies of the genome from (-) strands of an intermediate dsRNA genome. This acts as both a transcription and a replication process since the replicated RNA is also mRNA. RdRps belong to the expansive class of polymerases containing so-called palm catalytic domains along with the accessory fingers and thumb domains. All RdRps also have six conserved structural motifs (A-F), located in its majority in the palm subdomain (A-E motifs) and the F motif is located on the finger subdomain. All these motifs have been shown to be implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides. In addition to Group IV viruses, this model also includes Picobirnaviruses (PBVs), members of the family Picobirnaviridae of dsRNA viruses (Baltimore classification Group III), which are bi-segmented dsRNA viruses. The phylogenetic tree of the RdRps of RNA viruses (realm Riboviria) showed that picobirnaviruses are embedded in the branch of diverse (+)RNA viruses; sometimes they are collectively referred to as the picornavirus supergroup. RdRps of members of the family Permutatetraviridae, a distinct group of RNA viruses that encompass a circular permutation within the RdRp palm domain, are not included in this model.


Pssm-ID: 438017 [Multi-domain]  Cd Length: 73  Bit Score: 36.16  E-value: 9.49e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1774723412  642 HGVASGEKTTKIGNSFANVALIETVLDYTKQEIPDLEVSHLRVDGDDNVVVHN 694
Cdd:cd23167     21 AGQPSGSPNTSADNSLINLLLARLALRKACGRAEFLNSVGILVYGDDSLVSVP 73
 
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.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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