Diacylglycerol kinase accessory domain (presumed); Diacylglycerol (DAG) is a second messenger that acts as a protein kinase C activator. DAG can be produced from the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by a phosphoinositide-specific phospholipase C and by the degradation of phosphatidylcholine (PC) by a phospholipase C or the concerted actions of phospholipase D and phosphatidate phosphohydrolase. This domain might either be an accessory domain or else contribute to the catalytic domain. Bacterial homologues are known.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   767 VMNNYFGIGLDAKISLDFNNKRDEHPEKCRSRTKNMMWYGVLGTKELLHRTYKNLEQKVLLECDGRPIPLP-SLQGIAVL 845
Cdd:smart00045    1 VMNNYFSIGVDAHIALEFHNKREANPEKFNSRLKNKMWYFELGTKDLFFRTCKDLHERIELECDGVDVDLPnSLEGIAVL 80

                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   846 NIPSYAGGTNFWGGT-KEDDTFTAPSFDDKILEVVAVFGSMQMAVSRVIRLQHHRIAQCRTVKISILGDEGVPVQVDGEA 924
Cdd:smart00045   81 NIPSYGGGTNLWGTTdKEDLNFSKQSHDDGLLEVVGLTGAMHMAQIRQVGLAGRRIAQCSEVRITIKTSKTIPMQVDGEP 160

first protein kinase C conserved region 1 (C1 domain) found in diacylglycerol kinase delta (DAG kinase delta) and similar proteins; Diacylglycerol (DAG) kinase (EC 2.7.1.107) is a lipid kinase that phosphorylates diacylglycerol to form phosphatidic acid. DAG kinase delta, also called 130 kDa diacylglycerol kinase, or diglyceride kinase delta (DGK-delta), is a residential lipid kinase in the endoplasmic reticulum. It promotes lipogenesis and is involved in triglyceride biosynthesis. It is classified as a type II DAG kinase (DGK), containing pleckstrin homology (PH) and sterile alpha motifs (SAM) domains, in addition to C1 and catalytic domains that are present in all DGKs. The SAM domain mediates oligomerization of type II DGKs. DAG kinase delta contains two copies of the C1 domain. This model corresponds to the first one. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613  100 ALKTVQNREHFEPTQYSMDHFSGTHNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNCKWTTLA 179
Cdd:cd20847      1 ALKSVQNREHFESTQYSMDHFSGMHNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNCKWTTLA 80

                   ....*
gi 1622852613  180 SIGKD 184
Cdd:cd20847     81 SIGKD 85

SAM domain of diacylglycerol kinase delta; SAM (sterile alpha motif) domain of DGK-delta subfamily proteins is a protein-protein interaction domain. Proteins of this subfamily are multidomain diacylglycerol kinases with a SAM domain located at the C-terminus. DGK-delta proteins participate in signal transduction. They regulate the level of second messengers such as diacylglycerol and phosphatidic acid. In particular DGK-delta is involved in the regulation of clathrin-dependent endocytosis. The SAM domain of DGK-delta proteins can form high molecular weight homooligomers through head-to-tail interactions as well as heterooligomers with the SAM domain of DGK-eta proteins. The oligomerization plays a role in the regulation of the DGK-delta intracellular localization: it inhibits the translocation of the protein to the plasma membrane from the cytoplasm. The SAM domain also can bind Zn at multiple (not conserved) sites driving the formation of highly ordered large sheets of polymers, thus suggesting that Zn may play important role in the function of DCK-delta.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613 1145 PVHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09575      1 PVHLWGTEEVAAWLEHLSLCEYKDIFTRHDVRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 65

Diacylglycerol kinase accessory domain (presumed); Diacylglycerol (DAG) is a second messenger that acts as a protein kinase C activator. DAG can be produced from the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by a phosphoinositide-specific phospholipase C and by the degradation of phosphatidylcholine (PC) by a phospholipase C or the concerted actions of phospholipase D and phosphatidate phosphohydrolase. This domain might either be an accessory domain or else contribute to the catalytic domain. Bacterial homologues are known.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   767 VMNNYFGIGLDAKISLDFNNKRDEHPEKCRSRTKNMMWYGVLGTKELLHRTYKNLEQKVLLECDGRPIPLP-SLQGIAVL 845
Cdd:smart00045    1 VMNNYFSIGVDAHIALEFHNKREANPEKFNSRLKNKMWYFELGTKDLFFRTCKDLHERIELECDGVDVDLPnSLEGIAVL 80

                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   846 NIPSYAGGTNFWGGT-KEDDTFTAPSFDDKILEVVAVFGSMQMAVSRVIRLQHHRIAQCRTVKISILGDEGVPVQVDGEA 924
Cdd:smart00045   81 NIPSYGGGTNLWGTTdKEDLNFSKQSHDDGLLEVVGLTGAMHMAQIRQVGLAGRRIAQCSEVRITIKTSKTIPMQVDGEP 160

Type 2 Diacylglycerol kinase Pleckstrin homology (PH) domain; DGK (also called DAGK) catalyzes the conversion of diacylglycerol (DAG) to phosphatidic acid (PA) utilizing ATP as a source of the phosphate. In non-stimulated cells, DGK activity is low and DAG is used for glycerophospholipid biosynthesis. Upon receptor activation of the phosphoinositide pathway, DGK activity increases which drives the conversion of DAG to PA. DGK acts as a switch by terminating the signalling of one lipid while simultaneously activating signalling by another. There are 9 mammalian DGK isoforms all with conserved catalytic domains and two cysteine rich domains. These are further classified into 5 groups according to the presence of additional functional domains and substrate specificity: Type 1 - DGK-alpha, DGK-beta, DGK-gamma - contain EF-hand motifs and a recoverin homology domain; Type 2 - DGK-delta, DGK-eta, and DGK-kappa- contain a pleckstrin homology domain, two cysteine-rich zinc finger-like structures, and a separated catalytic region; Type 3 - DGK-epsilon - has specificity for arachidonate-containing DAG; Type 4 - DGK-zeta, DGK-iota- contain a MARCKS homology domain, ankyrin repeats, a C-terminal nuclear localization signal, and a PDZ-binding motif; Type 5 - DGK-theta - contains a third cysteine-rich domain, a pleckstrin homology domain and a proline rich region. The type 2 DGKs are present as part of this Metazoan DGK hierarchy. They have a N-terminal PH domain, two cysteine rich domains, followed by bipartite catalytic domains, and a C-terminal SAM domain. Their catalytic domains and perhaps other DGK catalytic domains may function as two independent units in a coordinated fashion. They may also require other motifs for maximal activity because several DGK catalytic domains have very little DAG kinase activity when expressed as isolated subunits. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   15 IKEGMLTKQNNSFQRSKRRYFKLRGRTLYYAKTAKSIIFDEVDLSDASVAESSTKNVNNSFTVITPCRKLILCADNRKEM 94
Cdd:cd13274      1 IKEGPLLKQTSSFQRWKRRYFKLKGRKLYYAKDSKSLIFEEIDLSDASVAECSTKNVNNSFTVITPFRKLILCAESRKEM 80

                           90
                   ....*....|....*..
gi 1622852613   95 EDWIAALKTVQNREHFE 111
Cdd:cd13274     81 EEWISALKTVQQREFYE 97

Diacylglycerol kinase catalytic domain (presumed); Diacylglycerol (DAG) is a second messenger that acts as a protein kinase C activator. DAG can be produced from the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by a phosphoinositide-specific phospholipase C and by the degradation of phosphatidylcholine (PC) by a phospholipase C or the concerted actions of phospholipase D and phosphatidate phosphohydrolase. This domain is presumed to be the catalytic domain. Bacterial homologues areknown.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   283 LVFVNSKSGDNQGVKFLRRFKQLLNPAQVFDLMNGGPHLGLRLFQKFDTF-RILVCGGDGSVGWVLSEIDSLNLHKQC-Q 360
Cdd:smart00046    1 LVFVNPKSGGGKGEKLLRKFRLLLNPRQVFDLTKKGPAVALVIFRDVPDFnRVLVCGGDGTVGWVLNALDKRELPLPEpP 80

                            90       100       110       120
                    ....*....|....*....|....*....|....*....|....*
gi 1622852613   361 LGVLPLGTGNDLARVLGWGSACDDDTQLPqILEKLERASTKMLDR 405
Cdd:smart00046   81 VAVLPLGTGNDLARSLGWGGGYDGEKLLK-TLRDALESDTVKLDR 124

second protein kinase C conserved region 1 (C1 domain) found in diacylglycerol kinase delta (DAG kinase delta) and similar proteins; Diacylglycerol (DAG) kinase (EC 2.7.1.107) is a lipid kinase that phosphorylates diacylglycerol to form phosphatidic acid. DAG kinase delta, also called 130 kDa diacylglycerol kinase, or diglyceride kinase delta (DGK-delta), is a residential lipid kinase in the endoplasmic reticulum. It promotes lipogenesis and is involved in triglyceride biosynthesis. It is classified as a type II DAG kinase (DGK), containing pleckstrin homology (PH) and sterile alpha motifs (SAM) domains, in addition to C1 and catalytic domains that are present in all DGKs. The SAM domain mediates oligomerization of type II DGKs. DAG kinase delta contains two copies of the C1 domain. This model corresponds to the second one. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1622852613  191 GIAMPHQWLEGNLPVSAKCTVCDKTCGSVLRLQDWRCLWCKAMVHTSCKESLLTKCPLGLC 251
Cdd:cd20893      1 GISMPHQWLEGNLPVSAKCTVCDKTCGSVLRLQDWRCLWCKAMVHTSCKELLLTKCPLGQC 61

Sterile alpha motif; Widespread domain in signalling and nuclear proteins. In EPH-related tyrosine kinases, appears to mediate cell-cell initiated signal transduction via the binding of SH2-containing proteins to a conserved tyrosine that is phosphorylated. In many cases mediates homodimerisation.

                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613  1146 VHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERR-DLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:smart00454    1 VSQWSPESVADWLESIGLEQYADNFRKNGIDGALLLLLTSEeDLKELGITKLGHRKKILKAIQKL 65

Protein kinase C conserved region 1 (C1) domains (Cysteine-rich domains); Some bind phorbol esters and diacylglycerol. Some bind RasGTP. Zinc-binding domains.

                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|
gi 1622852613   124 HNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:smart00109    1 HKHVFRTFTKPTFCCVCRKSIWGSFKQGLRCSECKVKCHKKCADKVPKAC 50

Phosphatidylglycerol kinase, diacylglycerol kinase family [Lipid transport and metabolism, General function prediction only];

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613  282 LLVFVNSKSGDNQGVKFLRRFKQLLN----PAQVFDLMNGGPhlGLRLFQK-----FDtfRILVCGGDGSVGWVLSEIds 352
Cdd:COG1597      5 ALLIVNPASGRGRAARLLERLVAALRaaglEVEVLETESPGD--ATELAREaaaegAD--LVVAAGGDGTVNEVANGL-- 78

                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1622852613  353 lnLHKQCQLGVLPLGTGNDLARVLGWgsacddDTQLPQILEKLERASTKMLD 404
Cdd:COG1597     79 --AGTGPPLGILPLGTGNDFARALGI------PLDPEAALEALLTGRTRRID 122

Phorbol esters/diacylglycerol binding domain (C1 domain); This domain is also known as the Protein kinase C conserved region 1 (C1) domain.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1622852613  124 HNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:pfam00130    1 HHFVHRNFKQPTFCDHCGEFLWGLGKQGLKCSWCKLNVHKRCHEKVPPEC 50

Phosphatidylglycerol kinase, diacylglycerol kinase family [Lipid transport and metabolism, General function prediction only];

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613  770 NYFGIGLDAKISLDFNNKRdehpekcrSRTKNMMWYGVLGTKELlhRTYKNLEqkVLLECDGRPIPLPSLQgIAVLNIPS 849
Cdd:COG1597    133 NVAGIGFDAEVVERANRAL--------KRRLGKLAYVLAALRAL--LRYRPFR--LRIELDGEEIEGEALL-VAVGNGPY 199

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613  850 YAGGTNFwggtkeddtFTAPSFDDKILEVVAV----FGSMQMAVSRVIR---LQHHRIAQCRTVKISILGDEGVPVQVDG 922
Cdd:COG1597    200 YGGGLRL---------APDASLDDGLLDVVVVrplsRLRLLRLLPRLLRgrhLRHPGVRYFRAREVEIESDRPLPVQLDG 270

                          170
                   ....*....|....*.
gi 1622852613  923 EA-WVQPPGYIRIVHK 937
Cdd:COG1597    271 EPlGLATPLEFEVLPG 286

hypothetical protein; Provisional

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1622852613  334 ILVCGGDGSVGWVLSEIdslnLHKQCQLGVLPLGTGNDLARVL-GWGSACDDdtqLPQILEKLERASTKMLD 404
Cdd:PRK12361   301 VIACGGDGTVTEVASEL----VNTDITLGIIPLGTANALSHALfGLGSKLIP---VEQACDNIIQGHTQRID 365

Diacylglycerol kinase accessory domain (presumed); Diacylglycerol (DAG) is a second messenger that acts as a protein kinase C activator. DAG can be produced from the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by a phosphoinositide-specific phospholipase C and by the degradation of phosphatidylcholine (PC) by a phospholipase C or the concerted actions of phospholipase D and phosphatidate phosphohydrolase. This domain might either be an accessory domain or else contribute to the catalytic domain. Bacterial homologues are known.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   767 VMNNYFGIGLDAKISLDFNNKRDEHPEKCRSRTKNMMWYGVLGTKELLHRTYKNLEQKVLLECDGRPIPLP-SLQGIAVL 845
Cdd:smart00045    1 VMNNYFSIGVDAHIALEFHNKREANPEKFNSRLKNKMWYFELGTKDLFFRTCKDLHERIELECDGVDVDLPnSLEGIAVL 80

                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   846 NIPSYAGGTNFWGGT-KEDDTFTAPSFDDKILEVVAVFGSMQMAVSRVIRLQHHRIAQCRTVKISILGDEGVPVQVDGEA 924
Cdd:smart00045   81 NIPSYGGGTNLWGTTdKEDLNFSKQSHDDGLLEVVGLTGAMHMAQIRQVGLAGRRIAQCSEVRITIKTSKTIPMQVDGEP 160

Type 2 Diacylglycerol kinase Pleckstrin homology (PH) domain; DGK (also called DAGK) catalyzes the conversion of diacylglycerol (DAG) to phosphatidic acid (PA) utilizing ATP as a source of the phosphate. In non-stimulated cells, DGK activity is low and DAG is used for glycerophospholipid biosynthesis. Upon receptor activation of the phosphoinositide pathway, DGK activity increases which drives the conversion of DAG to PA. DGK acts as a switch by terminating the signalling of one lipid while simultaneously activating signalling by another. There are 9 mammalian DGK isoforms all with conserved catalytic domains and two cysteine rich domains. These are further classified into 5 groups according to the presence of additional functional domains and substrate specificity: Type 1 - DGK-alpha, DGK-beta, DGK-gamma - contain EF-hand motifs and a recoverin homology domain; Type 2 - DGK-delta, DGK-eta, and DGK-kappa- contain a pleckstrin homology domain, two cysteine-rich zinc finger-like structures, and a separated catalytic region; Type 3 - DGK-epsilon - has specificity for arachidonate-containing DAG; Type 4 - DGK-zeta, DGK-iota- contain a MARCKS homology domain, ankyrin repeats, a C-terminal nuclear localization signal, and a PDZ-binding motif; Type 5 - DGK-theta - contains a third cysteine-rich domain, a pleckstrin homology domain and a proline rich region. The type 2 DGKs are present as part of this Metazoan DGK hierarchy. They have a N-terminal PH domain, two cysteine rich domains, followed by bipartite catalytic domains, and a C-terminal SAM domain. Their catalytic domains and perhaps other DGK catalytic domains may function as two independent units in a coordinated fashion. They may also require other motifs for maximal activity because several DGK catalytic domains have very little DAG kinase activity when expressed as isolated subunits. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   15 IKEGMLTKQNNSFQRSKRRYFKLRGRTLYYAKTAKSIIFDEVDLSDASVAESSTKNVNNSFTVITPCRKLILCADNRKEM 94
Cdd:cd13274      1 IKEGPLLKQTSSFQRWKRRYFKLKGRKLYYAKDSKSLIFEEIDLSDASVAECSTKNVNNSFTVITPFRKLILCAESRKEM 80

                           90
                   ....*....|....*..
gi 1622852613   95 EDWIAALKTVQNREHFE 111
Cdd:cd13274     81 EEWISALKTVQQREFYE 97

Diacylglycerol kinase catalytic domain (presumed); Diacylglycerol (DAG) is a second messenger that acts as a protein kinase C activator. DAG can be produced from the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by a phosphoinositide-specific phospholipase C and by the degradation of phosphatidylcholine (PC) by a phospholipase C or the concerted actions of phospholipase D and phosphatidate phosphohydrolase. This domain is presumed to be the catalytic domain. Bacterial homologues areknown.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   283 LVFVNSKSGDNQGVKFLRRFKQLLNPAQVFDLMNGGPHLGLRLFQKFDTF-RILVCGGDGSVGWVLSEIDSLNLHKQC-Q 360
Cdd:smart00046    1 LVFVNPKSGGGKGEKLLRKFRLLLNPRQVFDLTKKGPAVALVIFRDVPDFnRVLVCGGDGTVGWVLNALDKRELPLPEpP 80

                            90       100       110       120
                    ....*....|....*....|....*....|....*....|....*
gi 1622852613   361 LGVLPLGTGNDLARVLGWGSACDDDTQLPqILEKLERASTKMLDR 405
Cdd:smart00046   81 VAVLPLGTGNDLARSLGWGGGYDGEKLLK-TLRDALESDTVKLDR 124

SAM domain of diacylglycerol kinase delta; SAM (sterile alpha motif) domain of DGK-delta subfamily proteins is a protein-protein interaction domain. Proteins of this subfamily are multidomain diacylglycerol kinases with a SAM domain located at the C-terminus. DGK-delta proteins participate in signal transduction. They regulate the level of second messengers such as diacylglycerol and phosphatidic acid. In particular DGK-delta is involved in the regulation of clathrin-dependent endocytosis. The SAM domain of DGK-delta proteins can form high molecular weight homooligomers through head-to-tail interactions as well as heterooligomers with the SAM domain of DGK-eta proteins. The oligomerization plays a role in the regulation of the DGK-delta intracellular localization: it inhibits the translocation of the protein to the plasma membrane from the cytoplasm. The SAM domain also can bind Zn at multiple (not conserved) sites driving the formation of highly ordered large sheets of polymers, thus suggesting that Zn may play important role in the function of DCK-delta.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613 1145 PVHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09575      1 PVHLWGTEEVAAWLEHLSLCEYKDIFTRHDVRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 65

SAM domain of diacylglycerol kinase delta and eta subunits; SAM (sterile alpha motif) domain of DGK-eta-delta subfamily proteins is a protein-protein interaction domain. Proteins of this subfamily are multidomain diacylglycerol kinases with a SAM domain located at the C-terminus. DGK proteins participate in signal transduction. They regulate the level of second messengers such as diacylglycerol and phosphatidic acid. The SAM domain of DGK proteins can form high molecular weight homooligomers through head-to-tail interactions as well as heterooligomers between the SAM domains of DGK delta and eta proteins. The oligomerization plays a role in the regulation of DGK intracellular localization.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613 1145 PVHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09507      1 PVTNWTTEEVGAWLESLQLGEYRDIFARNDIRGSELLHLERRDLKDLGITKVGHVKRILQAIKDL 65

first protein kinase C conserved region 1 (C1 domain) found in type II diacylglycerol kinases; Diacylglycerol (DAG) kinase (EC 2.7.1.107) is a lipid kinase that phosphorylates diacylglycerol to form phosphatidic acid. Type II DAG kinases (DGKs) contain pleckstrin homology (PH) and sterile alpha motifs (SAM) domains, in addition to C1 and catalytic domains that are present in all DGKs. The SAM domain mediates oligomerization of type II DGKs. Three DGK isozymes (delta, eta and kappa) are classified as type II. DAG kinase delta, also called 130 kDa DAG kinase, or diglyceride kinase delta (DGK-delta), is a residential lipid kinase in the endoplasmic reticulum. It promotes lipogenesis and is involved in triglyceride biosynthesis. DAG kinase eta, also called diglyceride kinase eta (DGK-eta), plays a key role in promoting cell growth. The DAG kinase eta gene, DGKH, is a replicated risk gene of bipolar disorder (BPD). DAG kinase kappa is also called diglyceride kinase kappa (DGK-kappa) or 142 kDa DAG kinase. Members of this family contain two copies of the C1 domain. This model corresponds to the first one. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613  120 FSGTHNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNCKWTTLA 179
Cdd:cd20800      1 LSGSHNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVKAPNNCKWTTLA 60

SAM domain of diacylglycerol kinase eta; SAM (sterile alpha motif) domain of DGK-eta subfamily proteins is a protein-protein interaction domain. Proteins of this subfamily are multidomain diacylglycerol kinases. The SAM domain is located at the C-terminus of two out of three isoforms of DGK-eta protein. DGK-eta proteins participate in signal transduction. They regulate the level of second messengers such as diacylglycerol and phosphatidic acid. The SAM domain of DCK-eta proteins can form high molecular weight homooligomers through head-to-tail interactions as well as heterooligomers with the SAM domain of DGK-delta proteins. The oligomerization plays a role in the regulation of the DGK-delta intracellular localization: it is responsible for sustained endosomal localization of the protein and resulted in negative regulation of DCK-eta catalytic activity.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613 1145 PVHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09576      1 PVQKWGTDEVAAWLDLLSLGEYKEIFIRHDIRGSELLHLERRDLKDLGIPKVGHMKRILQGIKEL 65

second protein kinase C conserved region 1 (C1 domain) found in the diacylglycerol kinase family; The diacylglycerol kinase (DGK, EC 2.7.1.107) family of enzymes plays critical roles in lipid signaling pathways by converting diacylglycerol to phosphatidic acid, thereby downregulating signaling by the former and upregulating signaling by the latter second messenger. Ten DGK family isozymes have been identified to date, which possess different interaction motifs imparting distinct temporal and spatial control of DGK activity to each isozyme. They have been classified into five types (I-V), according to domain architecture and some common features. All DGK isozymes, except for DGKtheta, contain two copies of the C1 domain. This model corresponds to the second one. DGKtheta harbors three C1 domains. Its third C1 domain is included here. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

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                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613  196 HQWLEGNLPVSAKCTVCDKTCGSVLRLQDWRCLWCKAMVHTSCKESLL-TKCPLG 249
Cdd:cd20805      1 HHWVEGNLPSGAKCSVCGKKCGSSFGLAGYRCSWCKRTVHSECIDKLGpEECDLG 55

Sterile alpha motif; Widespread domain in signalling and nuclear proteins. In EPH-related tyrosine kinases, appears to mediate cell-cell initiated signal transduction via the binding of SH2-containing proteins to a conserved tyrosine that is phosphorylated. In many cases mediates homodimerisation.

                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1622852613  1146 VHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERR-DLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:smart00454    1 VSQWSPESVADWLESIGLEQYADNFRKNGIDGALLLLLTSEeDLKELGITKLGHRKKILKAIQKL 65

SAM domain of Shank1,2,3 family proteins; SAM (sterile alpha motif) domain of Shank1,2,3 family proteins is a protein-protein interaction domain. Shank1,2,3 proteins are scaffold proteins that are known to interact with a variety of cytoplasmic and membrane proteins. SAM domains of the Shank1,2,3 family are prone to homooligomerization. They are highly enriched in the postsynaptic density, acting as scaffolds to organize assembly of postsynaptic proteins. SAM domains of Shank3 proteins can form large sheets of helical fibers. Shank genes show distinct patterns of expression, in rat Shank1 mRNA is found almost exclusively in brain, Shank2 in brain, kidney and liver, and Shank3 in heart, brain and spleen.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1622852613 1145 PVHLWGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKELS 1210
Cdd:cd09506      1 PVHEWTVDDVGDWLESLNLGEHRERFMDNEIDGSHLPNLDKEDLTELGVTRVGHRMNIERALKKLL 66

SAM (Sterile alpha motif ); SAM (Sterile Alpha Motif) domain is a module consisting of approximately 70 amino acids. This domain is found in the Fungi/Metazoa group and in a restricted number of bacteria. Proteins with SAM domains are represented by a wide variety of domain architectures and have different intracellular localization, including nucleus, cytoplasm and membranes. SAM domains have diverse functions. They can interact with proteins, RNAs and membrane lipids, contain site of phosphorylation and/or kinase docking site, and play a role in protein homo and hetero dimerization/oligomerization in processes ranging from signal transduction to regulation of transcription. Mutations in SAM domains have been linked to several diseases.

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                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1622852613 1153 EVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKE 1208
Cdd:cd09487      1 DVAEWLESLGLEQYADLFRKNEIDGDALLLLTDEDLKELGITSPGHRKKILRAIQR 56

Protein kinase C conserved region 1 (C1) domains (Cysteine-rich domains); Some bind phorbol esters and diacylglycerol. Some bind RasGTP. Zinc-binding domains.

                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|
gi 1622852613   124 HNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:smart00109    1 HKHVFRTFTKPTFCCVCRKSIWGSFKQGLRCSECKVKCHKKCADKVPKAC 50

Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   16 KEGMLTKQNNSFQRS-KRRYFKLRGRTLYYAKTAKSIIF---DEVDLSD-ASVAESSTKNVNNSFTVITP-CRKLILCAD 89
Cdd:cd00821      1 KEGYLLKRGGGGLKSwKKRWFVLFEGVLLYYKSKKDSSYkpkGSIPLSGiLEVEEVSPKERPHCFELVTPdGRTYYLQAD 80

                           90
                   ....*....|..
gi 1622852613   90 NRKEMEDWIAAL 101
Cdd:cd00821     81 SEEERQEWLKAL 92

Dual Adaptor for Phosphotyrosine and 3-Phosphoinositides Pleckstrin homology (PH) domain; DAPP1 (also known as PHISH/3' phosphoinositide-interacting SH2 domain-containing protein or Bam32) plays a role in B-cell activation and has potential roles in T-cell and mast cell function. DAPP1 promotes B cell receptor (BCR) induced activation of Rho GTPases Rac1 and Cdc42, which feed into mitogen-activated protein kinases (MAPK) activation pathways and affect cytoskeletal rearrangement. DAPP1can also regulate BCR-induced activation of extracellular signal-regulated kinase (ERK), and c-jun NH2-terminal kinase (JNK). DAPP1 contains an N-terminal SH2 domain and a C-terminal pleckstrin homology (PH) domain with a single tyrosine phosphorylation site located centrally. DAPP1 binds strongly to both PtdIns(3,4,5)P3 and PtdIns(3,4)P2. The PH domain is essential for plasma membrane recruitment of PI3K upon cell activation. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   16 KEGMLTKQNNSFQRSKRRYFKLRGRTLYYAKTAKSII-FDEVDLSDAS-VAESSTKNVNNSFTVITPCRKLILCADNRKE 93
Cdd:cd10573      5 KEGYLTKLGGIVKNWKTRWFVLRRNELKYFKTRGDTKpIRVLDLRECSsVQRDYSQGKVNCFCLVFPERTFYMYANTEEE 84

                   ....*....
gi 1622852613   94 MEDWIAALK 102
Cdd:cd10573     85 ADEWVKLLK 93

first protein kinase C conserved region 1 (C1 domain) found in type I diacylglycerol kinases; Diacylglycerol (DAG) kinase (EC 2.7.1.107) is a lipid kinase that phosphorylates diacylglycerol to form phosphatidic acid. Type I DAG kinases (DGKs) contain EF-hand structures that bind Ca(2+) and recoverin homology domains, in addition to C1 and catalytic domains that are present in all DGKs. Type I DGKs, regulated by calcium binding, include three DGK isozymes (alpha, beta and gamma). DAG kinase alpha, also called 80 kDa DAG kinase, or diglyceride kinase alpha (DGK-alpha), is active upon cell stimulation, initiating the resynthesis of phosphatidylinositols and attenuating protein kinase C activity. DAG kinase beta, also called 90 kDa DAG kinase, or diglyceride kinase beta (DGK-beta), exhibits high phosphorylation activity for long-chain diacylglycerols. DAG kinase gamma, also called diglyceride kinase gamma (DGK-gamma), reverses the normal flow of glycerolipid biosynthesis by phosphorylating diacylglycerol back to phosphatidic acid. Members of this family contain two copies of the C1 domain. This model corresponds to the first one. DGK-alpha contains atypical C1 domains, while DGK-beta and DGK-gamma contain typical C1 domains that bind DAG and phorbol esters. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

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                   ....*....|....*....|....*....|....*....|....*....|..
gi 1622852613  122 GTHNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:cd20799      4 GQHVWRLKHFNKPAYCNVCENMLVGLRKQGLCCTFCKYTVHERCVSRAPASC 55

ArfGAP with coiled-coil, ankyrin repeat and PH domains Pleckstrin homology (PH) domain; ACAP (also called centaurin beta) functions both as a Rab35 effector and as an Arf6-GTPase-activating protein (GAP) by which it controls actin remodeling and membrane trafficking. ACAP contain an NH2-terminal bin/amphiphysin/Rvs (BAR) domain, a phospholipid-binding domain, a PH domain, a GAP domain, and four ankyrin repeats. The AZAPs constitute a family of Arf GAPs that are characterized by an NH2-terminal pleckstrin homology (PH) domain and a central Arf GAP domain followed by two or more ankyrin repeats. On the basis of sequence and domain organization, the AZAP family is further subdivided into four subfamilies: 1) the ACAPs contain an NH2-terminal bin/amphiphysin/Rvs (BAR) domain (a phospholipid-binding domain that is thought to sense membrane curvature), a single PH domain followed by the GAP domain, and four ankyrin repeats; 2) the ASAPs also contain an NH2-terminal BAR domain, the tandem PH domain/GAP domain, three ankyrin repeats, two proline-rich regions, and a COOH-terminal Src homology 3 domain; 3) the AGAPs contain an NH2-terminal GTPase-like domain (GLD), a split PH domain, and the GAP domain followed by four ankyrin repeats; and 4) the ARAPs contain both an Arf GAP domain and a Rho GAP domain, as well as an NH2-terminal sterile-a motif (SAM), a proline-rich region, a GTPase-binding domain, and five PH domains. PMID 18003747 and 19055940 Centaurin can bind to phosphatidlyinositol (3,4,5)P3. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   16 KEGMLTKQNNSFQRS-KRRYFKLRGRTLYYAKTAKSIIF--DEVDLSDASVAESSTKNVNNSFTVITPCRKLILCADNRK 92
Cdd:cd13250      1 KEGYLFKRSSNAFKTwKRRWFSLQNGQLYYQKRDKKDEPtvMVEDLRLCTVKPTEDSDRRFCFEVISPTKSYMLQAESEE 80

                           90
                   ....*....|..
gi 1622852613   93 EMEDWIAALKTV 104
Cdd:cd13250     81 DRQAWIQAIQSA 92

Tandem PH-domain-containing protein 2 Pleckstrin homology (PH) domain; The binding of TAPP2 (also called PLEKHA2) adaptors to PtdIns(3,4)P(2), but not PI(3,4, 5)P3, function as negative regulators of insulin and PI3K signalling pathways (i.e. TAPP/utrophin/syntrophin complex). TAPP2 contains two sequential PH domains in which the C-terminal PH domain specifically binds PtdIns(3,4)P2 with high affinity. The N-terminal PH domain does not interact with any phosphoinositide tested. They also contain a C-terminal PDZ-binding motif that interacts with several PDZ-binding proteins, including PTPN13 (known previously as PTPL1 or FAP-1) as well as the scaffolding proteins MUPP1 (multiple PDZ-domain-containing protein 1), syntrophin and utrophin. The members here are most sequence similar to TAPP2 proteins, but may not be actual TAPP2 proteins. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   14 IIKEGMLTKQNNSFQRSKRRYFKLRGRTLYYAKTAKSI-IFDEVDLSD-ASVAESSTKNVNNSFTVITPCRKLILCADNR 91
Cdd:cd13255      6 VLKAGYLEKKGERRKTWKKRWFVLRPTKLAYYKNDKEYrLLRLIDLTDiHTCTEVQLKKHDNTFGIVTPARTFYVQADSK 85

                           90
                   ....*....|
gi 1622852613   92 KEMEDWIAAL 101
Cdd:cd13255     86 AEMESWISAI 95

SAM domain of WDSUB1 proteins; SAM (sterile alpha motif) domain of WDSUB1 subfamily proteins is a putative protein-protein interaction domain. Proteins of this group contain multiple domains: SAM, one or more WD40 repeats and U-box (derived version of the RING-finger domain). Apparently the WDSUB1 subfamily proteins participate in protein degradation through ubiquitination, since U-box domain are known as a member of E3 ubiquitin ligase family, while SAM and WD40 domains most probably are responsible for an E2 ubiquitin-conjugating enzyme binding and a target protein binding.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1622852613 1149 WGTEEVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDL-KDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09505      5 WSEEDVCTWLRSIGLEQYVEVFRANNIDGKELLNLTKESLsKDLKIESLGHRNKILRKIEEL 66

Phorbol esters/diacylglycerol binding domain (C1 domain); This domain is also known as the Protein kinase C conserved region 1 (C1) domain.

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                   ....*....|....*....|....*....|....*....|....*....|
gi 1622852613  124 HNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:pfam00130    1 HHFVHRNFKQPTFCDHCGEFLWGLGKQGLKCSWCKLNVHKRCHEKVPPEC 50

SAM domain of Ste50_like (ubc2) subfamily; SAM (sterile alpha motif) domain of Ste50-like (or Ubc2 for Ustilago bypass of cyclase) subfamily is a putative protein-protein interaction domain. This group includes only fungal proteins. Basidiomycetes have an N-terminal SAM domain, central UBQ domain, and C-terminal SH3 domain, while Ascomycetes lack the SH3 domain. Ubc2 of Ustilago maydis is a major virulence and maize pathogenicity factor. It is required for filamentous growth (the budding haploid form of Ustilago maydis is a saprophyte, while filamentous dikaryotic form is a pathogen). Also the Ubc2 protein is involved in the pheromone-responsive morphogenesis via the MAP kinase cascade. The SAM domain is necessary for ubc2 function; deletion of SAM eliminates this function. A Lys-to-Glu mutation in the SAM domain of ubc2 gene induces temperature sensitivity.

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                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1622852613 1153 EVAAWLEHLSLCEYKDIFMRHDIRGSELLHLERRDLKDLGVTKVGHMKRILCGIKEL 1209
Cdd:cd09533      1 DVADWLSSLGLPQYEDQFIENGITGDVLVALDHEDLKEMGITSVGHRLTILKAVYEL 57

Autophagy-related protein 26/Sterol 3-beta-glucosyltransferase Pleckstrin homology (PH) domain, repeat 1; ATG26 (also called UGT51/UDP-glycosyltransferase 51), a member of the glycosyltransferase 28 family, resulting in the biosynthesis of sterol glucoside. ATG26 in decane metabolism and autophagy. There are 32 known autophagy-related (ATG) proteins, 17 are components of the core autophagic machinery essential for all autophagy-related pathways and 15 are the additional components required only for certain pathways or species. The core autophagic machinery includes 1) the ATG9 cycling system (ATG1, ATG2, ATG9, ATG13, ATG18, and ATG27), 2) the phosphatidylinositol 3-kinase complex (ATG6/VPS30, ATG14, VPS15, and ATG34), and 3) the ubiquitin-like protein system (ATG3, ATG4, ATG5, ATG7, ATG8, ATG10, ATG12, and ATG16). Less is known about how the core machinery is adapted or modulated with additional components to accommodate the nonselective sequestration of bulk cytosol (autophagosome formation) or selective sequestration of specific cargos (Cvt vesicle, pexophagosome, or bacteria-containing autophagosome formation). The pexophagosome-specific additions include the ATG30-ATG11-ATG17 receptor-adaptors complex, the coiled-coil protein ATG25, and the sterol glucosyltransferase ATG26. ATG26 is necessary for the degradation of medium peroxisomes. It contains 2 GRAM domains and a single PH domain. PH domains are only found in eukaryotes. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. PH domains also have diverse functions. They are often involved in targeting proteins to the plasma membrane, but few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   13 TIIKEGMLTKQNNSFQRSKRRYFKLRGRTLYYAKTAKSIIF--DEVDLSDASVAESSTKNVNN--SFTVITPCRKLILCA 88
Cdd:cd13215     20 AVIKSGYLSKRSKRTLRYTRYWFVLKGDTLSWYNSSTDLYFpaGTIDLRYATSIELSKSNGEAttSFKIVTNSRTYKFKA 99

                           90
                   ....*....|....*..
gi 1622852613   89 DNRKEMEDWIAALKTVQ 105
Cdd:cd13215    100 DSETSADEWVKALKKQI 116

PH domain; PH stands for pleckstrin homology.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1622852613   14 IIKEGMLTKQNNSFQRS-KRRYFKLRGRTLYY--------AKTAKSIIfdevDLSDASVAE---SSTKNVNNSFTVITPC 81
Cdd:pfam00169    1 VVKEGWLLKKGGGKKKSwKKRYFVLFDGSLLYykddksgkSKEPKGSI----SLSGCEVVEvvaSDSPKRKFCFELRTGE 76

                           90       100
                   ....*....|....*....|....*
gi 1622852613   82 ----RKLILCADNRKEMEDWIAALK 102
Cdd:pfam00169   77 rtgkRTYLLQAESEEERKDWIKAIQ 101

first protein kinase C conserved region 1 (C1 domain) found in the protein kinase D (PKD) family; PKDs are important regulators of many intracellular signaling pathways such as ERK and JNK, and cellular processes including the organization of the trans-Golgi network, membrane trafficking, cell proliferation, migration, and apoptosis. They are activated in a PKC-dependent manner by many agents including diacylglycerol (DAG), PDGF, neuropeptides, oxidative stress, and tumor-promoting phorbol esters, among others. Mammals harbor three types of PKDs: PKD1 (or PKCmu), PKD2, and PKD3 (or PKCnu). PKDs contain N-terminal tandem cysteine-rich zinc binding C1 (PKC conserved region 1), central PH (Pleckstrin Homology), and C-terminal catalytic kinase domains. This model corresponds to the first C1 domain. The C1 domain is a cysteine-rich zinc binding domain that does not bind DNA nor possess structural similarity to conventional zinc finger domains; it contains two separate Zn(2+)-binding sites.

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                   ....*....|....*....|....*....|....*....|....*....|
gi 1622852613  124 HNWYACSHARPTYCNVCREALSGVTSHGLSCEVCKFKAHKRCAVRATNNC 173
Cdd:cd20795      4 HSLFVHSYKSPTFCDFCGEMLFGLVRQGLKCEGCGLNFHKRCAYKIPNNC 53