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Conserved domains on  [gi|6912280|ref|NP_036243|]
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activator of 90 kDa heat shock protein ATPase homolog 1 isoform 1 [Homo sapiens]

Protein Classification

activator of 90 kDa heat shock protein ATPase family protein( domain architecture ID 10659693)

activator of 90 kDa heat shock protein ATPase homolog is a co-chaperone that regulates the dimeric chaperone Hsp90, and may act as either a negative or positive regulator of chaperone-dependent activation

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
SRPBCC_Aha1 cd08892
Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related ...
 208-333 1.41e-69

Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related proteins; This subfamily includes the C-terminal SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of Aha1, and related domains. Proteins in this group belong to the SRPBCC domain superfamily of proteins which bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket. Aha1 is one of several co-chaperones, which regulate the dimeric chaperone Hsp90. Hsp90, Aha1, and other accessory proteins interact in a chaperone cycle driven by ATP binding and hydrolysis. Aha1 promotes dimerization of the N-terminal domains of Hsp90, and stimulates its low intrinsic ATPase activity. One Aha1 molecule binds per Hsp90 dimer. The N- and C- terminal domains of Aha1 cooperatively bind across the dimer interface of Hsp90. The C-terminal domain of Aha1 binds the N-terminal Hsp90 ATPase domain. Aha1 may regulate the dwell time of Hsp90 with client proteins. Aha1 may act as either a negative or positive regulator of chaperone-dependent activation, depending on the client protein; for example, it acts as a negative regulator in the case of Saccharomyces cerevisiae MAL63 MAL-activator, and acts as a positive regulator in the case of glucocorticoid receptor and v-Src kinase. The mechanisms by which these opposing functions are achieved are unclear. Aha1 is upregulated in a number of tumor lines co-incident with the activation of several signaling kinases.


:

Pssm-ID: 176901 [Multi-domain]  Cd Length: 126  Bit Score: 212.81  E-value: 1.41e-69
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  208 KITLKETFLTSPEELYRVFTTQELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPEGHFATI 287
Cdd:cd08892   1 TISLTETFQVPAEELYEALTDEERVQAFTRSPAKVDAKVGGKFSLFGGNITGEFVELVPGKKIVQKWRFKSWPEGHYSTV 80

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 6912280  288 TLTFIDKNGETELCMEGRGIPAPEEERTRQGWQRYYFEGIKQTFGY 333
Cdd:cd08892  81 TLTFTEKDDETELKLTQTGVPAGEEERTREGWERYYFESIKQTFGY 126
Aha1_N smart01000
Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein ...
 29-158 7.22e-50

Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein 'Activator of Hsp90 ATPase', it adopts a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity.


:

Pssm-ID: 214964  Cd Length: 134  Bit Score: 162.82  E-value: 7.22e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280      29 ERDASNWSTDKLKTLF--LAVQVQNEEGKCEVTEVSKLDGEASINNRKGKLIFFYEWSVKLNWTGT-SKSGVQYKGHVEI 105
Cdd:smart01000   1 EKDCTPWAKEYLKELLvgLKISSEDEEGKIEISSVSSVSGDASVSQRKGKLICLYDLKITLKWSGTvAKDGKKVKGSIEI 80

                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....
gi 6912280     106 PNLSDENSVDEVEISVSLAKDEPDTN-LVALMKEEGVKLLREAMGIYISTLKTE 158
Cdd:smart01000  81 PELSHDNEEDDYQFEISITKDKEEKLeLKDLVRKKGVPKLREALGKFQKELLTE 134
 
Name Accession Description Interval E-value
SRPBCC_Aha1 cd08892
Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related ...
 208-333 1.41e-69

Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related proteins; This subfamily includes the C-terminal SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of Aha1, and related domains. Proteins in this group belong to the SRPBCC domain superfamily of proteins which bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket. Aha1 is one of several co-chaperones, which regulate the dimeric chaperone Hsp90. Hsp90, Aha1, and other accessory proteins interact in a chaperone cycle driven by ATP binding and hydrolysis. Aha1 promotes dimerization of the N-terminal domains of Hsp90, and stimulates its low intrinsic ATPase activity. One Aha1 molecule binds per Hsp90 dimer. The N- and C- terminal domains of Aha1 cooperatively bind across the dimer interface of Hsp90. The C-terminal domain of Aha1 binds the N-terminal Hsp90 ATPase domain. Aha1 may regulate the dwell time of Hsp90 with client proteins. Aha1 may act as either a negative or positive regulator of chaperone-dependent activation, depending on the client protein; for example, it acts as a negative regulator in the case of Saccharomyces cerevisiae MAL63 MAL-activator, and acts as a positive regulator in the case of glucocorticoid receptor and v-Src kinase. The mechanisms by which these opposing functions are achieved are unclear. Aha1 is upregulated in a number of tumor lines co-incident with the activation of several signaling kinases.


Pssm-ID: 176901 [Multi-domain]  Cd Length: 126  Bit Score: 212.81  E-value: 1.41e-69
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  208 KITLKETFLTSPEELYRVFTTQELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPEGHFATI 287
Cdd:cd08892   1 TISLTETFQVPAEELYEALTDEERVQAFTRSPAKVDAKVGGKFSLFGGNITGEFVELVPGKKIVQKWRFKSWPEGHYSTV 80

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 6912280  288 TLTFIDKNGETELCMEGRGIPAPEEERTRQGWQRYYFEGIKQTFGY 333
Cdd:cd08892  81 TLTFTEKDDETELKLTQTGVPAGEEERTREGWERYYFESIKQTFGY 126
Aha1_N smart01000
Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein ...
 29-158 7.22e-50

Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein 'Activator of Hsp90 ATPase', it adopts a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity.


Pssm-ID: 214964  Cd Length: 134  Bit Score: 162.82  E-value: 7.22e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280      29 ERDASNWSTDKLKTLF--LAVQVQNEEGKCEVTEVSKLDGEASINNRKGKLIFFYEWSVKLNWTGT-SKSGVQYKGHVEI 105
Cdd:smart01000   1 EKDCTPWAKEYLKELLvgLKISSEDEEGKIEISSVSSVSGDASVSQRKGKLICLYDLKITLKWSGTvAKDGKKVKGSIEI 80

                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....
gi 6912280     106 PNLSDENSVDEVEISVSLAKDEPDTN-LVALMKEEGVKLLREAMGIYISTLKTE 158
Cdd:smart01000  81 PELSHDNEEDDYQFEISITKDKEEKLeLKDLVRKKGVPKLREALGKFQKELLTE 134
Aha1_N pfam09229
Activator of Hsp90 ATPase, N-terminal; Members of this family, which are predominantly found ...
 29-159 1.67e-45

Activator of Hsp90 ATPase, N-terminal; Members of this family, which are predominantly found in the protein 'Activator of Hsp90 ATPase' adopt a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity.


Pssm-ID: 462716  Cd Length: 134  Bit Score: 151.55  E-value: 1.67e-45
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280     29 ERDASNWSTDKLKTLFLAVQVQNEEGK-CEVTEVSKLDGEASINNRKGKLIFFYEWSVKLNWTGTSKS-GVQYKGHVEIP 106
Cdd:pfam09229   1 EKNCTPWAKEYLKELLLGLEIEGDEGKsVKITEVSSVEGDASVNQRKGKVITIYDLKLTLEWEGTTKEdGEEVKGTITIP 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 6912280    107 NLSDENSVDEVEISVSLAKDEPDTN-LVALMKEEGVKLLREAMGIYISTLKTEF 159
Cdd:pfam09229  81 ELSHDNEDDEYEFEVSVYDESKEKDkLKDLVRKKLVPKLREKLAKFVKELIEEH 134
AHSA1 pfam08327
Activator of Hsp90 ATPase homolog 1-like protein; This family includes eukaryotic, prokaryotic ...
 217-332 6.25e-29

Activator of Hsp90 ATPase homolog 1-like protein; This family includes eukaryotic, prokaryotic and archaeal proteins that bear similarity to a C-terminal region of human activator of 90 kDa heat shock protein ATPase homolog 1 (AHSA1/p38). This protein is known to interact with the middle domain of Hsp90, and stimulate its ATPase activity. It is probably a general upregulator of Hsp90 function, particularly contributing to its efficiency in conditions of increased stress. p38 is also known to interact with the cytoplasmic domain of the VSV G protein, and may thus be involved in protein transport. It has also been reported as being underexpressed in Down's syndrome. This region is found repeated in two members of this family (Swiss:Q8XY04 and Swiss:Q6MH87). The structure of YndB from Bacillus subtilis showed the helix-grip fold consisting of a beta-sheet with two small and one long alpha-helix which form a hydrophobic cavity that preferentially binds lipid-like molecules. This structure confirms its similarity with the eukaryote protein Aha1 and its classification as a member of the AHSA1 family).


Pssm-ID: 429921 [Multi-domain]  Cd Length: 125  Bit Score: 108.17  E-value: 6.25e-29
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280    217 TSPEELYRVFTTQELVQA-FTHAPATLEADRGGKFHMVDGNV------SGEFTDLVPEKHIVMKWRFKSWPEGHFATITL 289
Cdd:pfam08327   2 APPERVFRALTDPELLARwFTRTVAEMDLRPGGKFRFMRGPDgeefggNGTYLELVPPKRIVYTWRLDDWPEGGYSTVTV 81

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 6912280    290 TFIDKNGETELCMEGRGIPAPEEER--TRQGWQRYYfEGIKQTFG 332
Cdd:pfam08327  82 ELEEVGGGTRLTLTHTGEPAGEKEEmgMEEGWEQSL-DQLKALLE 125
COG5580 COG5580
Activator of HSP90 ATPase [Posttranslational modification, protein turnover, chaperones];
209-332 4.77e-22

Activator of HSP90 ATPase [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 444319  Cd Length: 129  Bit Score: 90.03  E-value: 4.77e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  209 ITLKETFLTSPEELYRVFTTQELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPE-GHFATI 287
Cdd:COG5580   5 IKKYYTIPASPEEVYKALTDSQTHSAWTGGPAEMSPEVGGEFSAWDGYIVGRNLELEPGKKIVQSWRSSDFGDqEEDSIV 84

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*
gi 6912280  288 TLTFIDKNGETELCMEGRGIPAPEEERTRQGWQRYYFEGIKQTFG 332
Cdd:COG5580  85 TIKLHPHGGGTSLELIHTNIPDGDGEDIVEGWDEYYFGPMKKYFE 129
PTZ00220 PTZ00220
Activator of HSP-90 ATPase; Provisional
 215-333 8.47e-21

Activator of HSP-90 ATPase; Provisional


Pssm-ID: 173484  Cd Length: 132  Bit Score: 86.80  E-value: 8.47e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280   215 FLTSPEELYRVFTTQ-ELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPEGHFATITLTFID 293
Cdd:PTZ00220   1 FYVPPEVLYNAFLDAyTLTRLSLGSPAEMDAKVGGKFSLFNGSVEGEFTELEKPKKIVQKWRFRDWEEDVYSKVTIEFRA 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*...
gi 6912280   294 -KNGETELCMEGRGIPAPEE-------ERTRQGWQRYYFEGIKQTFGY 333
Cdd:PTZ00220  81 vEEDHTELKLTQTGIPSLDKfgnggclERCRNGWTQNFLDRFEKILGY 128
 
Name Accession Description Interval E-value
SRPBCC_Aha1 cd08892
Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related ...
 208-333 1.41e-69

Putative hydrophobic ligand-binding SRPBCC domain of the Hsp90 co-chaperone Aha1 and related proteins; This subfamily includes the C-terminal SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of Aha1, and related domains. Proteins in this group belong to the SRPBCC domain superfamily of proteins which bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket. Aha1 is one of several co-chaperones, which regulate the dimeric chaperone Hsp90. Hsp90, Aha1, and other accessory proteins interact in a chaperone cycle driven by ATP binding and hydrolysis. Aha1 promotes dimerization of the N-terminal domains of Hsp90, and stimulates its low intrinsic ATPase activity. One Aha1 molecule binds per Hsp90 dimer. The N- and C- terminal domains of Aha1 cooperatively bind across the dimer interface of Hsp90. The C-terminal domain of Aha1 binds the N-terminal Hsp90 ATPase domain. Aha1 may regulate the dwell time of Hsp90 with client proteins. Aha1 may act as either a negative or positive regulator of chaperone-dependent activation, depending on the client protein; for example, it acts as a negative regulator in the case of Saccharomyces cerevisiae MAL63 MAL-activator, and acts as a positive regulator in the case of glucocorticoid receptor and v-Src kinase. The mechanisms by which these opposing functions are achieved are unclear. Aha1 is upregulated in a number of tumor lines co-incident with the activation of several signaling kinases.


Pssm-ID: 176901 [Multi-domain]  Cd Length: 126  Bit Score: 212.81  E-value: 1.41e-69
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  208 KITLKETFLTSPEELYRVFTTQELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPEGHFATI 287
Cdd:cd08892   1 TISLTETFQVPAEELYEALTDEERVQAFTRSPAKVDAKVGGKFSLFGGNITGEFVELVPGKKIVQKWRFKSWPEGHYSTV 80

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
gi 6912280  288 TLTFIDKNGETELCMEGRGIPAPEEERTRQGWQRYYFEGIKQTFGY 333
Cdd:cd08892  81 TLTFTEKDDETELKLTQTGVPAGEEERTREGWERYYFESIKQTFGY 126
Aha1_N smart01000
Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein ...
 29-158 7.22e-50

Activator of Hsp90 ATPase, N-terminal; This domain is predominantly found in the protein 'Activator of Hsp90 ATPase', it adopts a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity.


Pssm-ID: 214964  Cd Length: 134  Bit Score: 162.82  E-value: 7.22e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280      29 ERDASNWSTDKLKTLF--LAVQVQNEEGKCEVTEVSKLDGEASINNRKGKLIFFYEWSVKLNWTGT-SKSGVQYKGHVEI 105
Cdd:smart01000   1 EKDCTPWAKEYLKELLvgLKISSEDEEGKIEISSVSSVSGDASVSQRKGKLICLYDLKITLKWSGTvAKDGKKVKGSIEI 80

                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....
gi 6912280     106 PNLSDENSVDEVEISVSLAKDEPDTN-LVALMKEEGVKLLREAMGIYISTLKTE 158
Cdd:smart01000  81 PELSHDNEEDDYQFEISITKDKEEKLeLKDLVRKKGVPKLREALGKFQKELLTE 134
Aha1_N pfam09229
Activator of Hsp90 ATPase, N-terminal; Members of this family, which are predominantly found ...
 29-159 1.67e-45

Activator of Hsp90 ATPase, N-terminal; Members of this family, which are predominantly found in the protein 'Activator of Hsp90 ATPase' adopt a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity.


Pssm-ID: 462716  Cd Length: 134  Bit Score: 151.55  E-value: 1.67e-45
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280     29 ERDASNWSTDKLKTLFLAVQVQNEEGK-CEVTEVSKLDGEASINNRKGKLIFFYEWSVKLNWTGTSKS-GVQYKGHVEIP 106
Cdd:pfam09229   1 EKNCTPWAKEYLKELLLGLEIEGDEGKsVKITEVSSVEGDASVNQRKGKVITIYDLKLTLEWEGTTKEdGEEVKGTITIP 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 6912280    107 NLSDENSVDEVEISVSLAKDEPDTN-LVALMKEEGVKLLREAMGIYISTLKTEF 159
Cdd:pfam09229  81 ELSHDNEDDEYEFEVSVYDESKEKDkLKDLVRKKLVPKLREKLAKFVKELIEEH 134
AHSA1 pfam08327
Activator of Hsp90 ATPase homolog 1-like protein; This family includes eukaryotic, prokaryotic ...
 217-332 6.25e-29

Activator of Hsp90 ATPase homolog 1-like protein; This family includes eukaryotic, prokaryotic and archaeal proteins that bear similarity to a C-terminal region of human activator of 90 kDa heat shock protein ATPase homolog 1 (AHSA1/p38). This protein is known to interact with the middle domain of Hsp90, and stimulate its ATPase activity. It is probably a general upregulator of Hsp90 function, particularly contributing to its efficiency in conditions of increased stress. p38 is also known to interact with the cytoplasmic domain of the VSV G protein, and may thus be involved in protein transport. It has also been reported as being underexpressed in Down's syndrome. This region is found repeated in two members of this family (Swiss:Q8XY04 and Swiss:Q6MH87). The structure of YndB from Bacillus subtilis showed the helix-grip fold consisting of a beta-sheet with two small and one long alpha-helix which form a hydrophobic cavity that preferentially binds lipid-like molecules. This structure confirms its similarity with the eukaryote protein Aha1 and its classification as a member of the AHSA1 family).


Pssm-ID: 429921 [Multi-domain]  Cd Length: 125  Bit Score: 108.17  E-value: 6.25e-29
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280    217 TSPEELYRVFTTQELVQA-FTHAPATLEADRGGKFHMVDGNV------SGEFTDLVPEKHIVMKWRFKSWPEGHFATITL 289
Cdd:pfam08327   2 APPERVFRALTDPELLARwFTRTVAEMDLRPGGKFRFMRGPDgeefggNGTYLELVPPKRIVYTWRLDDWPEGGYSTVTV 81

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 6912280    290 TFIDKNGETELCMEGRGIPAPEEER--TRQGWQRYYfEGIKQTFG 332
Cdd:pfam08327  82 ELEEVGGGTRLTLTHTGEPAGEKEEmgMEEGWEQSL-DQLKALLE 125
COG5580 COG5580
Activator of HSP90 ATPase [Posttranslational modification, protein turnover, chaperones];
209-332 4.77e-22

Activator of HSP90 ATPase [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 444319  Cd Length: 129  Bit Score: 90.03  E-value: 4.77e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  209 ITLKETFLTSPEELYRVFTTQELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPE-GHFATI 287
Cdd:COG5580   5 IKKYYTIPASPEEVYKALTDSQTHSAWTGGPAEMSPEVGGEFSAWDGYIVGRNLELEPGKKIVQSWRSSDFGDqEEDSIV 84

                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*
gi 6912280  288 TLTFIDKNGETELCMEGRGIPAPEEERTRQGWQRYYFEGIKQTFG 332
Cdd:COG5580  85 TIKLHPHGGGTSLELIHTNIPDGDGEDIVEGWDEYYFGPMKKYFE 129
PTZ00220 PTZ00220
Activator of HSP-90 ATPase; Provisional
 215-333 8.47e-21

Activator of HSP-90 ATPase; Provisional


Pssm-ID: 173484  Cd Length: 132  Bit Score: 86.80  E-value: 8.47e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280   215 FLTSPEELYRVFTTQ-ELVQAFTHAPATLEADRGGKFHMVDGNVSGEFTDLVPEKHIVMKWRFKSWPEGHFATITLTFID 293
Cdd:PTZ00220   1 FYVPPEVLYNAFLDAyTLTRLSLGSPAEMDAKVGGKFSLFNGSVEGEFTELEKPKKIVQKWRFRDWEEDVYSKVTIEFRA 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*...
gi 6912280   294 -KNGETELCMEGRGIPAPEE-------ERTRQGWQRYYFEGIKQTFGY 333
Cdd:PTZ00220  81 vEEDHTELKLTQTGIPSLDKfgnggclERCRNGWTQNFLDRFEKILGY 128
SRPBCC_CalC_Aha1-like cd07814
Putative hydrophobic ligand-binding SRPBCC domain of Micromonospora echinospora CalC, human ...
 209-329 2.38e-15

Putative hydrophobic ligand-binding SRPBCC domain of Micromonospora echinospora CalC, human Aha1, and related proteins; This family includes the SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of Micromonospora echinospora CalC, human Aha1, and related proteins. Proteins in this group belong to the SRPBCC domain superfamily of proteins, which bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket. MeCalC confers resistance to the enediyne, calicheamicin gamma 1 (CLM), by a self sacrificing mechanism which results in inactivation of both CalC and the highly reactive diradical enediyne species. MeCalC can also inactivate two other enediynes, shishijimicin and namenamicin. A crucial Gly of the MeCalC CLM resistance mechanism is not conserved in this subgroup. This family also includes the C-terminal, Bet v1-like domain of Aha1, one of several co-chaperones, which regulate the dimeric chaperone Hsp90. Aha1 promotes dimerization of the N-terminal domains of Hsp90, and stimulates its low intrinsic ATPase activity, and may regulate the dwell time of Hsp90 with client proteins. Aha1 can act as either a positive or negative regulator of chaperone-dependent activation, depending on the client protein, but the mechanisms by which these opposing functions are achieved are unclear. Aha1 is upregulated in a number of tumor lines co-incident with the activation of several signaling kinases.


Pssm-ID: 176856 [Multi-domain]  Cd Length: 139  Bit Score: 72.01  E-value: 2.38e-15
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  209 ITLKETFLTSPEELYRVFTTQELVQA--FTHAPATLEADRGGKFHMVDGN-------VSGEFTDLVPEKHIVMKWRFKSW 279
Cdd:cd07814   2 ITIEREFDAPPELVWRALTDPELLAQwfGPTTTAEMDLRVGGRWFFFMTGpdgeegwVSGEVLEVEPPRRLVFTWAFSDE 81

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*
gi 6912280  280 PEGHFATITLTFIDKNGETELCMEGRGIPAPEE-----ERTRQGWQRyYFEGIKQ 329
Cdd:cd07814  82 TPGPETTVTVTLEETGGGTRLTLTHSGFPEEDAeqearEGMEEGWTG-TLDRLKA 135
YndB COG3832
Chalcone/flavanone-binding protein YndB, AHSA1/START/SRPBCC domain [Lipid transport and ...
 208-320 1.36e-11

Chalcone/flavanone-binding protein YndB, AHSA1/START/SRPBCC domain [Lipid transport and metabolism];


Pssm-ID: 443044 [Multi-domain]  Cd Length: 142  Bit Score: 61.59  E-value: 1.36e-11
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  208 KITLKETFLTSPEELYRVFTTQELVQA-FTHAPATLEAD----RGGKFHMV----DGN---VSGEFTDLVPEKHIVMKWR 275
Cdd:COG3832   7 TITIEREIDAPPERVWRAWTDPELLARwFGPKGWATVAEfdlrVGGRFRFRmrgpDGEefgFEGEVLEVEPPERLVFTWG 86

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|
gi 6912280  276 FKSWPEGHFaTITLTFIDKNGETELCMEGRGIPAPEEERT-----RQGWQ 320
Cdd:COG3832  87 FEDDPEGES-TVTVTLEPEGGGTRLTLTHTGFSAEDRDAVlaegmEEGWT 135
SRPBCC_CalC_Aha1-like_9 cd07826
Putative hydrophobic ligand-binding SRPBCC domain of an uncharacterized subgroup of CalC- and ...
 214-300 1.41e-04

Putative hydrophobic ligand-binding SRPBCC domain of an uncharacterized subgroup of CalC- and Aha1-like proteins; SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of a functionally uncharacterized subgroup of CalC- and Aha1-like proteins. This group shows similarity to the SRPBCC domains of Micromonospora echinospora CalC (a protein which confers resistance to enediynes) and human Aha1 (one of several co-chaperones which regulate the dimeric chaperone Hsp90), and belongs to the SRPBCC domain superfamily of proteins that bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket and they bind diverse ligands.


Pssm-ID: 176868  Cd Length: 142  Bit Score: 41.47  E-value: 1.41e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  214 TFLTSPEELYRVFTTQELVQAFTHAPA------TLEADRGGKFHMV----DGN---VSGEFTDLVPEKHIVMKWRFKSWP 280
Cdd:cd07826   7 EFDAPRELVFRAHTDPELVKRWWGPRGltmtvcECDIRVGGSYRYVhrapDGEemgFHGVYHEVTPPERIVQTEEFEGLP 86

                        90       100
                ....*....|....*....|
gi 6912280  281 eGHFATITLTFIDKNGETEL 300
Cdd:cd07826  87 -DGVALETVTFTELGGRTRL 105
SRPBCC_CalC_Aha1-like_2 cd08895
Putative hydrophobic ligand-binding SRPBCC domain of an uncharacterized subgroup of CalC- and ...
 209-320 3.66e-04

Putative hydrophobic ligand-binding SRPBCC domain of an uncharacterized subgroup of CalC- and Aha1-like proteins; SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain of a functionally uncharacterized subgroup of CalC- and Aha1-like proteins. This group shows similarity to the SRPBCC domains of Micromonospora echinospora CalC (a protein which confers resistance to enediynes) and human Aha1 (one of several co-chaperones which regulate the dimeric chaperone Hsp90), and belongs to the SRPBCC domain superfamily of proteins that bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket and they bind diverse ligands.


Pssm-ID: 176904  Cd Length: 146  Bit Score: 40.35  E-value: 3.66e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912280  209 ITLKETFLTSPEELYRVFTTQE-LVQ-----AFTHAPATLEADRGGKFHMV-----------DGN---VSGEFTDLVPEK 268
Cdd:cd08895   2 DRLHRVIAAPPERVYRAFLDPDaLAKwlppdGMTGTVHEFDAREGGGFRMSltyfdpsvgktTGNtdvFGGRFLELVPNE 81

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 6912280  269 HIVMKWRFK--SWPEGHFATITLTfiDKNGETELCMEGRGIPA--PEEErTRQGWQ 320
Cdd:cd08895  82 RIVYTDVFDdpSLSGEMTMTWTLS--PVSGGTDVTIVQSGIPDgiPPED-CELGWQ 134
 
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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