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Conserved domains on  [gi|74218784|dbj|BAE37807|]
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unnamed protein product [Mus musculus]

Protein Classification

membrane-bound transcription factor site-2 protease( domain architecture ID 11568813)

membrane-bound transcription factor site-2 protease is a zinc metalloprotease from the M50 metallopeptidase family which cleaves transmembrane domains of substrate proteins, regulating intramembrane proteolysis (RIP) of diverse signal transduction mechanisms, including processes as sporulation, cell division, stress response, and cell differentiation

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List of domain hits

Name Accession Description Interval E-value
S2P-M50_PDZ_SREBP cd06162
Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc ...
14-225 8.03e-105

Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc metalloprotease (MEROPS family M50A), regulates intramembrane proteolysis (RIP) of SREBP and is part of a signal transduction mechanism involved in sterol and lipid metabolism. In sterol-depleted mammalian cells, a two-step proteolytic process releases the N-terminal domains of SREBPs from membranes of the endoplasmic reticulum (ER). These domains translocate into the nucleus, where they activate genes of cholesterol and fatty acid biosynthesis. The first cleavage occurs at Site-1 within the ER lumen to generate an intermediate that is subsequently released from the membrane by cleavage at Site-2, which lies within the first transmembrane domain. It is the second proteolytic step that is carried out by the SREBP Site-2 protease (S2P) which is present in this CD family. This group appears to be limited to eumetazoan proteins and contains one PDZ domain.


:

Pssm-ID: 100083 [Multi-domain]  Cd Length: 277  Bit Score: 314.73  E-value: 8.03e-105
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  14 WTAVYLADLVLKSSVYFKHSYEDWLENNGLSISPFHIRWQTSIFNRAFYSWGRRKARMLYQWFNFGMVFGVIAMFSSFFL 93
Cdd:cd06162   9 WGVVYFFDTFLKSSSCMKYPYEAFLKNTGLSISPFHIRWHTTAFNRLFYRWGRAKPRLLYLWFSLGVVFGVLAMFLSVFL 88
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  94 LGKTLMQTLAQMMADSPSpysssssssssssssssssssLHNEQVLQVVVPGINLPVNQLTYFFAAVLISGVVHEIGHGI 173
Cdd:cd06162  89 LGKTLMQTLSQMMASSPA---------------------VANEQVLQVVVPGVNLPLSQLGYYFTALLISGVVHEMGHGV 147
                       170       180       190       200       210
                ....*....|....*....|....*....|....*....|....*....|..
gi 74218784 174 AAIREQVRFNGFGIFLFIIYPGAFVDLFTTHLQLISPVQQLRIFCAGIWHNF 225
Cdd:cd06162 148 AAVREQVRVNGFGIFFFIIYPGAYVDLFTDHLNLISPVQQLRIFCAGVWHNF 199
cpPDZ_MBTPS2-like cd06775
circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, ...
216-322 5.14e-42

circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, also known as S2P) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of MBTPS2, also known as sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), and related domains. MBTPS2 is a zinc metalloprotease (MEROPS family M50A). In the Golgi, it catalyzes the second step in the proteolytic activation of sterol regulatory element-binding proteins (SREBPs), releasing the transcriptionally active N-terminal domain of SREBP, which then enters the nucleus and activates genes encoding the low density lipoprotein (LDL) receptor and enzymes for cholesterol and fatty acid biosynthesis. MBTPS2 also mediates the second step in the proteolytic activation of the cyclic AMP-dependent transcription factor ATF6. ATF6 is a membrane-bound transcription factor that activates genes in the endoplasmic reticulum (ER) stress response. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains and as well as those with circular permutations and domain swapping of beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2); arranged as A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F. One permutation places beta-strand A on the C-terminus, another permutation places both beta-strands A and B on the C-terminus.


:

Pssm-ID: 467619 [Multi-domain]  Cd Length: 107  Bit Score: 145.46  E-value: 5.14e-42
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784 216 IFCAGIWHNFVLALLGILALVLLPVILLPFYYTGVGVLITEVAEDSPAIGPRGLFVGDLVTHLQDCPVTNVQDWNECLDT 295
Cdd:cd06775   1 IYCAGVWHNFVLVLVALLVLFLLPFLLSPFYYTGSGVVVTEVVENSPVSGPRGLFVGDVITSINDCPVTSVEDWMKCLEE 80
                        90       100
                ....*....|....*....|....*..
gi 74218784 296 IAYEPQIGYCISASTLQQLSFPVRAYK 322
Cdd:cd06775  81 VSKSPQSGYCVSADFLQQLDTSSRVYK 107
Peptidase_M50 pfam02163
Peptidase family M50;
155-496 4.26e-34

Peptidase family M50;


:

Pssm-ID: 426630 [Multi-domain]  Cd Length: 291  Bit Score: 130.30  E-value: 4.26e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   155 YFFAAVLISGVVHEIGHGIAAIREQVRFNGFGI--FLFIIYP-GAFVDLFTThLQLISPVQQLRIFCAGIWHNFVLALLG 231
Cdd:pfam02163   1 AFILALGILVVVHELGHFLVARRFGVKVERFSIgfYRIALIPlGGYVKMADE-FKSKSPWQRLAIALAGPLANFILAIIL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   232 ILALVLLPVILLPFYYtgvgvLITEVAEDSPAIGPrGLFVGDLVTHLQDCPVTNVQDWNECLDTiayepQIGYCISASTL 311
Cdd:pfam02163  80 FAVLLFLSGVPPPAPP-----VIGGVAPGSPAAKA-GLKPGDVILSINGKKITSWQDLVEALAK-----SPGKPITLTVE 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   312 QqlSFPVRAYKRLDGSTECCnnhsltdvcfsYRNNFNKRLHTCLPARKAVEATQvcrsnkdcksgasssFCIVPSLETHT 391
Cdd:pfam02163 149 R--GGQTLTVTITPKSSEES-----------KFIGIGPVYVKYGLLEALGFALE---------------KTVNLVTLTLK 200
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   392 RLIKVKHPPqiDMLYVGHPLHLHYTVSITSFIprfnflsidlpviveTFVKYLISLSGALAIVNAVPCFALDGQWILNSF 471
Cdd:pfam02163 201 ALGKLITGV--SLKNLGGPIGIAGQAAEAGLI---------------AFLYFLALINLNLGIFNLLPVPPLDGGHILRAL 263
                         330       340
                  ....*....|....*....|....*...
gi 74218784   472 LDAtLTSVIGDNDVKDL---IGFFILLG 496
Cdd:pfam02163 264 LEA-IRGKPLSERAEEIalrVGLALLLL 290
 
Name Accession Description Interval E-value
S2P-M50_PDZ_SREBP cd06162
Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc ...
14-225 8.03e-105

Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc metalloprotease (MEROPS family M50A), regulates intramembrane proteolysis (RIP) of SREBP and is part of a signal transduction mechanism involved in sterol and lipid metabolism. In sterol-depleted mammalian cells, a two-step proteolytic process releases the N-terminal domains of SREBPs from membranes of the endoplasmic reticulum (ER). These domains translocate into the nucleus, where they activate genes of cholesterol and fatty acid biosynthesis. The first cleavage occurs at Site-1 within the ER lumen to generate an intermediate that is subsequently released from the membrane by cleavage at Site-2, which lies within the first transmembrane domain. It is the second proteolytic step that is carried out by the SREBP Site-2 protease (S2P) which is present in this CD family. This group appears to be limited to eumetazoan proteins and contains one PDZ domain.


Pssm-ID: 100083 [Multi-domain]  Cd Length: 277  Bit Score: 314.73  E-value: 8.03e-105
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  14 WTAVYLADLVLKSSVYFKHSYEDWLENNGLSISPFHIRWQTSIFNRAFYSWGRRKARMLYQWFNFGMVFGVIAMFSSFFL 93
Cdd:cd06162   9 WGVVYFFDTFLKSSSCMKYPYEAFLKNTGLSISPFHIRWHTTAFNRLFYRWGRAKPRLLYLWFSLGVVFGVLAMFLSVFL 88
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  94 LGKTLMQTLAQMMADSPSpysssssssssssssssssssLHNEQVLQVVVPGINLPVNQLTYFFAAVLISGVVHEIGHGI 173
Cdd:cd06162  89 LGKTLMQTLSQMMASSPA---------------------VANEQVLQVVVPGVNLPLSQLGYYFTALLISGVVHEMGHGV 147
                       170       180       190       200       210
                ....*....|....*....|....*....|....*....|....*....|..
gi 74218784 174 AAIREQVRFNGFGIFLFIIYPGAFVDLFTTHLQLISPVQQLRIFCAGIWHNF 225
Cdd:cd06162 148 AAVREQVRVNGFGIFFFIIYPGAYVDLFTDHLNLISPVQQLRIFCAGVWHNF 199
cpPDZ_MBTPS2-like cd06775
circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, ...
216-322 5.14e-42

circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, also known as S2P) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of MBTPS2, also known as sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), and related domains. MBTPS2 is a zinc metalloprotease (MEROPS family M50A). In the Golgi, it catalyzes the second step in the proteolytic activation of sterol regulatory element-binding proteins (SREBPs), releasing the transcriptionally active N-terminal domain of SREBP, which then enters the nucleus and activates genes encoding the low density lipoprotein (LDL) receptor and enzymes for cholesterol and fatty acid biosynthesis. MBTPS2 also mediates the second step in the proteolytic activation of the cyclic AMP-dependent transcription factor ATF6. ATF6 is a membrane-bound transcription factor that activates genes in the endoplasmic reticulum (ER) stress response. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains and as well as those with circular permutations and domain swapping of beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2); arranged as A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F. One permutation places beta-strand A on the C-terminus, another permutation places both beta-strands A and B on the C-terminus.


Pssm-ID: 467619 [Multi-domain]  Cd Length: 107  Bit Score: 145.46  E-value: 5.14e-42
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784 216 IFCAGIWHNFVLALLGILALVLLPVILLPFYYTGVGVLITEVAEDSPAIGPRGLFVGDLVTHLQDCPVTNVQDWNECLDT 295
Cdd:cd06775   1 IYCAGVWHNFVLVLVALLVLFLLPFLLSPFYYTGSGVVVTEVVENSPVSGPRGLFVGDVITSINDCPVTSVEDWMKCLEE 80
                        90       100
                ....*....|....*....|....*..
gi 74218784 296 IAYEPQIGYCISASTLQQLSFPVRAYK 322
Cdd:cd06775  81 VSKSPQSGYCVSADFLQQLDTSSRVYK 107
Peptidase_M50 pfam02163
Peptidase family M50;
155-496 4.26e-34

Peptidase family M50;


Pssm-ID: 426630 [Multi-domain]  Cd Length: 291  Bit Score: 130.30  E-value: 4.26e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   155 YFFAAVLISGVVHEIGHGIAAIREQVRFNGFGI--FLFIIYP-GAFVDLFTThLQLISPVQQLRIFCAGIWHNFVLALLG 231
Cdd:pfam02163   1 AFILALGILVVVHELGHFLVARRFGVKVERFSIgfYRIALIPlGGYVKMADE-FKSKSPWQRLAIALAGPLANFILAIIL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   232 ILALVLLPVILLPFYYtgvgvLITEVAEDSPAIGPrGLFVGDLVTHLQDCPVTNVQDWNECLDTiayepQIGYCISASTL 311
Cdd:pfam02163  80 FAVLLFLSGVPPPAPP-----VIGGVAPGSPAAKA-GLKPGDVILSINGKKITSWQDLVEALAK-----SPGKPITLTVE 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   312 QqlSFPVRAYKRLDGSTECCnnhsltdvcfsYRNNFNKRLHTCLPARKAVEATQvcrsnkdcksgasssFCIVPSLETHT 391
Cdd:pfam02163 149 R--GGQTLTVTITPKSSEES-----------KFIGIGPVYVKYGLLEALGFALE---------------KTVNLVTLTLK 200
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   392 RLIKVKHPPqiDMLYVGHPLHLHYTVSITSFIprfnflsidlpviveTFVKYLISLSGALAIVNAVPCFALDGQWILNSF 471
Cdd:pfam02163 201 ALGKLITGV--SLKNLGGPIGIAGQAAEAGLI---------------AFLYFLALINLNLGIFNLLPVPPLDGGHILRAL 263
                         330       340
                  ....*....|....*....|....*...
gi 74218784   472 LDAtLTSVIGDNDVKDL---IGFFILLG 496
Cdd:pfam02163 264 LEA-IRGKPLSERAEEIalrVGLALLLL 290
 
Name Accession Description Interval E-value
S2P-M50_PDZ_SREBP cd06162
Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc ...
14-225 8.03e-105

Sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), a zinc metalloprotease (MEROPS family M50A), regulates intramembrane proteolysis (RIP) of SREBP and is part of a signal transduction mechanism involved in sterol and lipid metabolism. In sterol-depleted mammalian cells, a two-step proteolytic process releases the N-terminal domains of SREBPs from membranes of the endoplasmic reticulum (ER). These domains translocate into the nucleus, where they activate genes of cholesterol and fatty acid biosynthesis. The first cleavage occurs at Site-1 within the ER lumen to generate an intermediate that is subsequently released from the membrane by cleavage at Site-2, which lies within the first transmembrane domain. It is the second proteolytic step that is carried out by the SREBP Site-2 protease (S2P) which is present in this CD family. This group appears to be limited to eumetazoan proteins and contains one PDZ domain.


Pssm-ID: 100083 [Multi-domain]  Cd Length: 277  Bit Score: 314.73  E-value: 8.03e-105
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  14 WTAVYLADLVLKSSVYFKHSYEDWLENNGLSISPFHIRWQTSIFNRAFYSWGRRKARMLYQWFNFGMVFGVIAMFSSFFL 93
Cdd:cd06162   9 WGVVYFFDTFLKSSSCMKYPYEAFLKNTGLSISPFHIRWHTTAFNRLFYRWGRAKPRLLYLWFSLGVVFGVLAMFLSVFL 88
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  94 LGKTLMQTLAQMMADSPSpysssssssssssssssssssLHNEQVLQVVVPGINLPVNQLTYFFAAVLISGVVHEIGHGI 173
Cdd:cd06162  89 LGKTLMQTLSQMMASSPA---------------------VANEQVLQVVVPGVNLPLSQLGYYFTALLISGVVHEMGHGV 147
                       170       180       190       200       210
                ....*....|....*....|....*....|....*....|....*....|..
gi 74218784 174 AAIREQVRFNGFGIFLFIIYPGAFVDLFTTHLQLISPVQQLRIFCAGIWHNF 225
Cdd:cd06162 148 AAVREQVRVNGFGIFFFIIYPGAYVDLFTDHLNLISPVQQLRIFCAGVWHNF 199
cpPDZ_MBTPS2-like cd06775
circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, ...
216-322 5.14e-42

circularly permuted PDZ domain of membrane-bound transcription factor site-2 protease (MBTPS2, also known as S2P) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of MBTPS2, also known as sterol regulatory element-binding protein (SREBP) Site-2 protease (S2P), and related domains. MBTPS2 is a zinc metalloprotease (MEROPS family M50A). In the Golgi, it catalyzes the second step in the proteolytic activation of sterol regulatory element-binding proteins (SREBPs), releasing the transcriptionally active N-terminal domain of SREBP, which then enters the nucleus and activates genes encoding the low density lipoprotein (LDL) receptor and enzymes for cholesterol and fatty acid biosynthesis. MBTPS2 also mediates the second step in the proteolytic activation of the cyclic AMP-dependent transcription factor ATF6. ATF6 is a membrane-bound transcription factor that activates genes in the endoplasmic reticulum (ER) stress response. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains and as well as those with circular permutations and domain swapping of beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2); arranged as A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F. One permutation places beta-strand A on the C-terminus, another permutation places both beta-strands A and B on the C-terminus.


Pssm-ID: 467619 [Multi-domain]  Cd Length: 107  Bit Score: 145.46  E-value: 5.14e-42
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784 216 IFCAGIWHNFVLALLGILALVLLPVILLPFYYTGVGVLITEVAEDSPAIGPRGLFVGDLVTHLQDCPVTNVQDWNECLDT 295
Cdd:cd06775   1 IYCAGVWHNFVLVLVALLVLFLLPFLLSPFYYTGSGVVVTEVVENSPVSGPRGLFVGDVITSINDCPVTSVEDWMKCLEE 80
                        90       100
                ....*....|....*....|....*..
gi 74218784 296 IAYEPQIGYCISASTLQQLSFPVRAYK 322
Cdd:cd06775  81 VSKSPQSGYCVSADFLQQLDTSSRVYK 107
Peptidase_M50 pfam02163
Peptidase family M50;
155-496 4.26e-34

Peptidase family M50;


Pssm-ID: 426630 [Multi-domain]  Cd Length: 291  Bit Score: 130.30  E-value: 4.26e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   155 YFFAAVLISGVVHEIGHGIAAIREQVRFNGFGI--FLFIIYP-GAFVDLFTThLQLISPVQQLRIFCAGIWHNFVLALLG 231
Cdd:pfam02163   1 AFILALGILVVVHELGHFLVARRFGVKVERFSIgfYRIALIPlGGYVKMADE-FKSKSPWQRLAIALAGPLANFILAIIL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   232 ILALVLLPVILLPFYYtgvgvLITEVAEDSPAIGPrGLFVGDLVTHLQDCPVTNVQDWNECLDTiayepQIGYCISASTL 311
Cdd:pfam02163  80 FAVLLFLSGVPPPAPP-----VIGGVAPGSPAAKA-GLKPGDVILSINGKKITSWQDLVEALAK-----SPGKPITLTVE 148
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   312 QqlSFPVRAYKRLDGSTECCnnhsltdvcfsYRNNFNKRLHTCLPARKAVEATQvcrsnkdcksgasssFCIVPSLETHT 391
Cdd:pfam02163 149 R--GGQTLTVTITPKSSEES-----------KFIGIGPVYVKYGLLEALGFALE---------------KTVNLVTLTLK 200
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784   392 RLIKVKHPPqiDMLYVGHPLHLHYTVSITSFIprfnflsidlpviveTFVKYLISLSGALAIVNAVPCFALDGQWILNSF 471
Cdd:pfam02163 201 ALGKLITGV--SLKNLGGPIGIAGQAAEAGLI---------------AFLYFLALINLNLGIFNLLPVPPLDGGHILRAL 263
                         330       340
                  ....*....|....*....|....*...
gi 74218784   472 LDAtLTSVIGDNDVKDL---IGFFILLG 496
Cdd:pfam02163 264 LEA-IRGKPLSERAEEIalrVGLALLLL 290
S2P-M50_PDZ_Arch cd06159
Uncharacterized Archaeal homologs of Site-2 protease (S2P), zinc metalloproteases (MEROPS ...
38-225 1.22e-16

Uncharacterized Archaeal homologs of Site-2 protease (S2P), zinc metalloproteases (MEROPS family M50) which cleave transmembrane domains of substrate proteins, regulating intramembrane proteolysis (RIP) of diverse signal transduction mechanisms. Members of the S2P/M50 family of RIP proteases use proteolytic activity within the membrane to transfer information across membranes to integrate gene expression with physiologic stresses occurring in another cellular compartment. In eukaryotic cells they regulate such processes as sterol and lipid metabolism, and endoplasmic reticulum stress responses. In prokaryotes they regulate such processes as sporulation, cell division, stress response, and cell differentiation. This group appears to be limited to Archaeal S2P/M50s homologs with additional putative N-terminal transmembrane spanning regions, relative to the core protein, and either one or two PDZ domains present.


Pssm-ID: 100080 [Multi-domain]  Cd Length: 263  Bit Score: 79.65  E-value: 1.22e-16
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784  38 LENNGLSISPFHIRWQTSifNRAFYSWGRRKARmLYQWF-NFGMVFGVIAMFSSFFLLGKTLMQTLAQMMADSpspysss 116
Cdd:cd06159  23 LEYNISTYGPFLMLRTKK--GRGFIDKLARPKR-FWRAFgNIGIPIAFVGMIFMLLLILLSAIIILSGPPAPL------- 92
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784 117 sssssssssssssssslhNEQVLQVVVPGINLPVnQLTYFFAAVLISGVVHEIGHGIAAIREQVRFNGFGIFLFIIYPGA 196
Cdd:cd06159  93 ------------------NAPRNVLVIPGVNIFI-PLPYGIIALVVGVVVHELSHGILARVEGIKVKSGGLLLLIIPPGA 153
                       170       180
                ....*....|....*....|....*....
gi 74218784 197 FVDLFTTHLQLISPVQQLRIFCAGIWHNF 225
Cdd:cd06159 154 FVEPDEEELNKADRRIRLRIFAAGVTANF 182
cpPDZ_Deg_HtrA-like cd06779
permuted PDZ domain of Deg/high-temperature requirement factor A (HtrA) family of housekeeping ...
245-313 1.11e-14

permuted PDZ domain of Deg/high-temperature requirement factor A (HtrA) family of housekeeping serine proteases and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of Deg/HtrA-type serine proteases that participate in folding and degradation of aberrant proteins, and in processing and maturation of native proteins. Typically, these proteases have an N-terminal serine protease domain and at least one C-terminal PDZ domain that recognizes substrates, and in some cases activates the protease function. An exception is yeast Nma11p which has two protease domains and four PDZ domains; its N-terminal half is comprised of a protease domain, followed by two PDZ domains, and its C-terminal half has a similar domain arrangement. HtrA-type proteases include the human HtrA1-4 and MBTPS2, tricorn protease, DegS, DegP and C-terminal processing peptidase, cyanobacterial serine proteases Hhoa, HhoB, and HtrA, and yeast Nma11p. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-termini of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains and as well as those with circular permutations and domain swapping of beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2); arranged as A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F. This Deg/HtrA family PDZ domain is a circularly permuted PDZ domain which places beta-strand A at the C-terminus. Another permutation exists in the PDZ superfamily which places both beta-strands A and B on the C-terminus.


Pssm-ID: 467621 [Multi-domain]  Cd Length: 91  Bit Score: 69.63  E-value: 1.11e-14
                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 74218784 245 FYYTGVGVLITEVAEDSPAIGPrGLFVGDLVTHLQDCPVTNVQDWNECLDTIAyepqIGYCISASTLQQ 313
Cdd:cd06779  20 GLPVNRGVLVAEVIPGSPAAKA-GLKEGDVILSVNGKPVTSFNDLRAALDTKK----PGDSLNLTILRD 83
S2P-M50 cd05709
Site-2 protease (S2P) class of zinc metalloproteases (MEROPS family M50) cleaves transmembrane ...
155-225 1.22e-05

Site-2 protease (S2P) class of zinc metalloproteases (MEROPS family M50) cleaves transmembrane domains of substrate proteins, regulating intramembrane proteolysis (RIP) of diverse signal transduction mechanisms. Members of this family use proteolytic activity within the membrane to transfer information across membranes to integrate gene expression with physiologic stresses occurring in another cellular compartment. The domain core structure appears to contain at least three transmembrane helices with a catalytic zinc atom coordinated by three conserved residues contained within the consensus sequence HExxH, together with a conserved aspartate residue. The S2P/M50 family of RIP proteases is widely distributed; in eukaryotic cells, they regulate such processes as sterol and lipid metabolism, and endoplasmic reticulum (ER) stress responses. In sterol-depleted mammalian cells, a two-step proteolytic process releases the N-terminal domains of sterol regulatory element-binding proteins (SREBPs) from membranes of the ER. These domains translocate into the nucleus, where they activate genes of cholesterol and fatty acid biosynthesis. It is the second proteolytic step that is carried out by the SREBP Site-2 protease (S2P) which is present in this CD superfamily. Prokaryotic S2P/M50 homologs have been shown to regulate stress responses, sporulation, cell division, and cell differentiation. In Escherichia coli, the S2P homolog RseP is involved in the sigmaE pathway of extracytoplasmic stress responses, and in Bacillus subtilis, the S2P homolog SpoIVFB is involved in the pro-sigmaK pathway of spore formation. Some of the subfamilies within this hierarchy contain one or two PDZ domain insertions, with putative regulatory roles, such as the inhibition of substrate cleavage as seen by the RseP PDZ domain.


Pssm-ID: 100078 [Multi-domain]  Cd Length: 180  Bit Score: 45.69  E-value: 1.22e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 74218784 155 YFFAAVLISGVVHEIGHGIAAIREQVRFNGFGIFL-------------FIIYPGAFVDLFTTHLQL--ISPVQQLRIFCA 219
Cdd:cd05709   2 AFILALLISVTVHELGHALVARRLGVKVARFSGGFtlnplkhgdpygiILIPLGGYAKPVGENPRAfkKPRWQRLLVALA 81

                ....*.
gi 74218784 220 GIWHNF 225
Cdd:cd05709  82 GPLANL 87
cpPDZ2_DegP-like cd23084
circularly permuted second PDZ domain (PDZ2) of Escherichia coli periplasmic serine ...
249-295 6.22e-04

circularly permuted second PDZ domain (PDZ2) of Escherichia coli periplasmic serine endoprotease DegP and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 2 of Escherichia coli DegP (also known as heat shock protein DegP and Protease Do), and related domains. DegP belongs to the HtrA family of housekeeping proteases. It acts as a protease, degrading transiently denatured and unfolded or misfolded proteins which accumulate in the periplasm following heat shock or other stress conditions, and as a molecular chaperone at low temperatures. DegP has two PDZ domains in addition to the protease domain; its PDZ1 domain is responsible for the identifying the distinct substrate sequences that affect degradation (degron) of the substrate sequence, and its PDZ2 domain is responsible for the combining with other DegP monomers to form a stable oligomer structure. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains and as well as those with circular permutations and domain swapping of beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2); arranged as A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F. This DegP family PDZ domain 2 is a circularly permuted PDZ domain which places beta-strand A on the C-terminus. Another permutation exists in the PDZ superfamily which places both beta-strands A and B on the C-terminus.


Pssm-ID: 467631 [Multi-domain]  Cd Length: 83  Bit Score: 38.76  E-value: 6.22e-04
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*..
gi 74218784 249 GVGVLITEVAEDSPAiGPRGLFVGDLVTHLQDCPVTNVQDWNECLDT 295
Cdd:cd23084  17 GKGVVVTEVDPGSPA-AQSGLKKGDVIIGVNRQPVKSIAELRKVLKS 62
PDZ4_DLG5-like cd06766
PDZ domain 4 of Discs Large 5 (Dlg5) and related domains; PDZ (PSD-95 (Postsynaptic density ...
250-275 4.92e-03

PDZ domain 4 of Discs Large 5 (Dlg5) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 4 of Drosophila and mammalian Dlg5, and related domains. Dlg5 is a scaffold protein with multiple conserved functions that are independent of each other in regulating growth, cell polarity, and cell adhesion. It has a coiled-coil domain, 4 PDZ domains and a MAGUK domain (an SH3 domain next to a non-catalytically active guanylate kinase domain). Deregulation of Dlg5 has been implicated in the malignancy of several cancer types. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Dlg5-like family PDZ4 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.


Pssm-ID: 467247 [Multi-domain]  Cd Length: 81  Bit Score: 36.21  E-value: 4.92e-03
                        10        20
                ....*....|....*....|....*.
gi 74218784 250 VGVLITEVAEDSPAIGPRGLFVGDLV 275
Cdd:cd06766  24 HGIFVEDVEDDSPAKGPDGLVPGDLI 49
 
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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