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Conserved domains on  [gi|890765500|ref|NP_001297525|]
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proteasome subunit alpha type-3 isoform b [Mus musculus]

Protein Classification

Ntn hydrolase family protein( domain architecture ID 307)

Ntn (N-terminal nucleophile) hydrolase family protein is activated autocatalytically via an N-terminally located nucleophilic amino acid, and may catalyze the hydrolysis of amide bonds in either protein or small molecule substrates

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Ntn_hydrolase super family cl00467
The Ntn hydrolases (N-terminal nucleophile) are a diverse superfamily of of enzymes that are ...
 1-142 9.73e-95

The Ntn hydrolases (N-terminal nucleophile) are a diverse superfamily of of enzymes that are activated autocatalytically via an N-terminally lcated nucleophilic amino acid. N-terminal nucleophile (NTN-) hydrolase superfamily, which contains a four-layered alpha, beta, beta, alpha core structure. This family of hydrolases includes penicillin acylase, the 20S proteasome alpha and beta subunits, and glutamate synthase. The mechanism of activation of these proteins is conserved, although they differ in their substrate specificities. All known members catalyze the hydrolysis of amide bonds in either proteins or small molecules, and each one of them is synthesized as a preprotein. For each, an autocatalytic endoproteolytic process generates a new N-terminal residue. This mature N-terminal residue is central to catalysis and acts as both a polarizing base and a nucleophile during the reaction. The N-terminal amino group acts as the proton acceptor and activates either the nucleophilic hydroxyl in a Ser or Thr residue or the nucleophilic thiol in a Cys residue. The position of the N-terminal nucleophile in the active site and the mechanism of catalysis are conserved in this family, despite considerable variation in the protein sequences.


The actual alignment was detected with superfamily member cd03751:

Pssm-ID: 469781 [Multi-domain]  Cd Length: 212  Bit Score: 273.77  E-value: 9.73e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYsANDGAQLYMIDPS 80
Cdd:cd03751   72 IAVAGLLADGRHLVSRAREEAENYRDNYGTPIPVKVLADRVAMYMHAYTLYSSVRPFGCSVLLGGY-DSDGPQLYMIEPS 150

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:cd03751  151 GVSYGYFGCAIGKGKQAAKTELEKLKFSELTCREAVKEAAKIIYIVHDEIKDKAFELELSWV 212
 
Name Accession Description Interval E-value
proteasome_alpha_type_3 cd03751
proteasome_alpha_type_3. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-142 9.73e-95

proteasome_alpha_type_3. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239720 [Multi-domain]  Cd Length: 212  Bit Score: 273.77  E-value: 9.73e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYsANDGAQLYMIDPS 80
Cdd:cd03751   72 IAVAGLLADGRHLVSRAREEAENYRDNYGTPIPVKVLADRVAMYMHAYTLYSSVRPFGCSVLLGGY-DSDGPQLYMIEPS 150

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:cd03751  151 GVSYGYFGCAIGKGKQAAKTELEKLKFSELTCREAVKEAAKIIYIVHDEIKDKAFELELSWV 212
Proteasome pfam00227
Proteasome subunit; The proteasome is a multisubunit structure that degrades proteins. Protein ...
 1-142 5.91e-44

Proteasome subunit; The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologs vary greatly in complexity: from HslV (heat shock locus v), which is encoded by 1 gene in bacteria, to the eukaryotic 20S proteasome, which is encoded by more than 14 genes. Recently evidence of two novel groups of bacterial proteasomes was proposed. The first is Anbu, which is sparsely distributed among cyanobacteria and proteobacteria. The second is call beta-proteobacteria proteasome homolog (BPH).


Pssm-ID: 459721 [Multi-domain]  Cd Length: 188  Bit Score: 143.86  E-value: 5.91e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500    1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKhLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPS 80
Cdd:pfam00227  48 MAFAGLAADARTLVDRARAEAQLYRLRYGRPIPVE-LAARIADLLQAYTQYSGRRPFGVSLLIAGYDEDGGPHLYQIDPS 126

                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500   81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:pfam00227 127 GSYIEYKATAIGSGSQYAYGVLEKLYRPDLTLEEAVELAVKALKEAIDRDALSGGNIEVAVI 188
PTZ00246 PTZ00246
proteasome subunit alpha; Provisional
 2-176 7.55e-24

proteasome subunit alpha; Provisional


Pssm-ID: 173491 [Multi-domain]  Cd Length: 253  Bit Score: 94.15  E-value: 7.55e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPSG 81
Cdd:PTZ00246  75 AVAGLTADANILINQCRLYAQRYRYTYGEPQPVEQLVVQICDLKQSYTQFGGLRPFGVSFLFAGYDENLGYQLYHTDPSG 154

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500  82 VSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWvgeLTKGRHEIVP------- 154
Cdd:PTZ00246 155 NYSGWKATAIGQNNQTAQSILKQEWKEDLTLEQGLLLAAKVLTKSMDSTSPKADKIEVGI---LSHGETDGEPiqkmlse 231

                        170       180
                 ....*....|....*....|..
gi 890765500 155 KDIREEAEKYAKESLKEEDESD 176
Cdd:PTZ00246 232 KEIAELLKKVTQEYAKENTNNN 253
PRE1 COG0638
20S proteasome, alpha and beta subunits [Posttranslational modification, protein turnover, ...
 1-156 1.20e-20

20S proteasome, alpha and beta subunits [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 440403 [Multi-domain]  Cd Length: 229  Bit Score: 84.81  E-value: 1.20e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYsAVRPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:COG0638   78 VAIAGLVADARELVRLARVEAQLYELRYGEPISVEGLAKLLSDLLQGYTQY-GVRPFGVALLIGGVD-DGGPRLFSTDPS 155

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELElswVGELTKGRHEIVPKD 156
Cdd:COG0638  156 GGLYEEKAVAIGSGSPFARGVLEKEYREDLSLDEAVELALRALYSAAERDSASGDGID---VAVITEDGFRELSEE 228
 
Name Accession Description Interval E-value
proteasome_alpha_type_3 cd03751
proteasome_alpha_type_3. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-142 9.73e-95

proteasome_alpha_type_3. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239720 [Multi-domain]  Cd Length: 212  Bit Score: 273.77  E-value: 9.73e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYsANDGAQLYMIDPS 80
Cdd:cd03751   72 IAVAGLLADGRHLVSRAREEAENYRDNYGTPIPVKVLADRVAMYMHAYTLYSSVRPFGCSVLLGGY-DSDGPQLYMIEPS 150

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:cd03751  151 GVSYGYFGCAIGKGKQAAKTELEKLKFSELTCREAVKEAAKIIYIVHDEIKDKAFELELSWV 212
proteasome_alpha cd01911
proteasome alpha subunit. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-142 3.23e-67

proteasome alpha subunit. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 different alpha and 10 different beta proteasome subunit genes while archaea have one of each.


Pssm-ID: 238892 [Multi-domain]  Cd Length: 209  Bit Score: 203.83  E-value: 3.23e-67
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPS 80
Cdd:cd01911   69 CAVAGLTADARVLVNRARVEAQNYRYTYGEPIPVEVLVKRIADLAQVYTQYGGVRPFGVSLLIAGYDEEGGPQLYQTDPS 148

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKdKAFELELSWV 142
Cdd:cd01911  149 GTYFGYKATAIGKGSQEAKTFLEKRYKKDLTLEEAIKLALKALKEVLEEDK-KAKNIEIAVV 209
Proteasome pfam00227
Proteasome subunit; The proteasome is a multisubunit structure that degrades proteins. Protein ...
 1-142 5.91e-44

Proteasome subunit; The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologs vary greatly in complexity: from HslV (heat shock locus v), which is encoded by 1 gene in bacteria, to the eukaryotic 20S proteasome, which is encoded by more than 14 genes. Recently evidence of two novel groups of bacterial proteasomes was proposed. The first is Anbu, which is sparsely distributed among cyanobacteria and proteobacteria. The second is call beta-proteobacteria proteasome homolog (BPH).


Pssm-ID: 459721 [Multi-domain]  Cd Length: 188  Bit Score: 143.86  E-value: 5.91e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500    1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKhLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPS 80
Cdd:pfam00227  48 MAFAGLAADARTLVDRARAEAQLYRLRYGRPIPVE-LAARIADLLQAYTQYSGRRPFGVSLLIAGYDEDGGPHLYQIDPS 126

                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500   81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:pfam00227 127 GSYIEYKATAIGSGSQYAYGVLEKLYRPDLTLEEAVELAVKALKEAIDRDALSGGNIEVAVI 188
proteasome_protease_HslV cd01906
proteasome_protease_HslV. This group contains the eukaryotic proteosome alpha and beta ...
 1-142 9.80e-41

proteasome_protease_HslV. This group contains the eukaryotic proteosome alpha and beta subunits and the prokaryotic protease hslV subunit. Proteasomes are large multimeric self-compartmentalizing proteases, involved in the clearance of misfolded proteins, the breakdown of regulatory proteins, and the processing of proteins such as the preparation of peptides for immune presentation. Two main proteasomal types are distinguished by their different tertiary structures: the eukaryotic/archeal 20S proteasome and the prokaryotic proteasome-like heat shock protein encoded by heat shock locus V, hslV. The proteasome core particle is a highly conserved cylindrical structure made up of non-identical subunits that have their active sites on the inner walls of a large central cavity. The proteasome subunits of bacteria, archaea, and eukaryotes all share a conserved Ntn (N terminal nucleophile) hydrolase fold and a catalytic mechanism involving an N-terminal nucleophilic threonine that is exposed by post-translational processing of an inactive propeptide.


Pssm-ID: 238887  Cd Length: 182  Bit Score: 135.70  E-value: 9.80e-41
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYsaVRPFGCSFMLGSYSANDGAQLYMIDPS 80
Cdd:cd01906   43 CAFAGLAADAQTLVERLRKEAQLYRLRYGEPIPVEALAKLLANLLYEYTQS--LRPLGVSLLVAGVDEEGGPQLYSVDPS 120

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:cd01906  121 GSYIEYKATAIGSGSQYALGILEKLYKPDMTLEEAIELALKALKSALERDLYSGGNIEVAVI 182
Ntn_hydrolase cd01901
The Ntn hydrolases (N-terminal nucleophile) are a diverse superfamily of of enzymes that are ...
 1-125 1.95e-25

The Ntn hydrolases (N-terminal nucleophile) are a diverse superfamily of of enzymes that are activated autocatalytically via an N-terminally lcated nucleophilic amino acid. N-terminal nucleophile (NTN-) hydrolase superfamily, which contains a four-layered alpha, beta, beta, alpha core structure. This family of hydrolases includes penicillin acylase, the 20S proteasome alpha and beta subunits, and glutamate synthase. The mechanism of activation of these proteins is conserved, although they differ in their substrate specificities. All known members catalyze the hydrolysis of amide bonds in either proteins or small molecules, and each one of them is synthesized as a preprotein. For each, an autocatalytic endoproteolytic process generates a new N-terminal residue. This mature N-terminal residue is central to catalysis and acts as both a polarizing base and a nucleophile during the reaction. The N-terminal amino group acts as the proton acceptor and activates either the nucleophilic hydroxyl in a Ser or Thr residue or the nucleophilic thiol in a Cys residue. The position of the N-terminal nucleophile in the active site and the mechanism of catalysis are conserved in this family, despite considerable variation in the protein sequences.


Pssm-ID: 238884 [Multi-domain]  Cd Length: 164  Bit Score: 95.92  E-value: 1.95e-25
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLysaVRPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:cd01901   43 WGLAGLAADAQTLVRRLREALQLYRLRYGEPISVVALAKELAKLLQVYTQ---GRPFGVNLIVAGVD-EGGGNLYYIDPS 118

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 890765500  81 GVSYGYWG-CAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYI 125
Cdd:cd01901  119 GPVIENPGaVATGSRSQRAKSLLEKLYKPDMTLEEAVELALKALKS 164
proteasome_alpha_type_6 cd03754
proteasome_alpha_type_6. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 5-109 1.25e-24

proteasome_alpha_type_6. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239723 [Multi-domain]  Cd Length: 215  Bit Score: 94.99  E-value: 1.25e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   5 GLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPSGVSY 84
Cdd:cd03754   75 GMIADSRSQVQRARYEAAEFKYKYGYEMPVDVLAKRIADINQVYTQHAYMRPLGVSMILIGIDEELGPQLYKCDPAGYFA 154

                         90       100
                 ....*....|....*....|....*
gi 890765500  85 GYWGCAIGKARQAAKTEIEKLQMKE 109
Cdd:cd03754  155 GYKATAAGVKEQEATNFLEKKLKKK 179
PTZ00246 PTZ00246
proteasome subunit alpha; Provisional
 2-176 7.55e-24

proteasome subunit alpha; Provisional


Pssm-ID: 173491 [Multi-domain]  Cd Length: 253  Bit Score: 94.15  E-value: 7.55e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPSG 81
Cdd:PTZ00246  75 AVAGLTADANILINQCRLYAQRYRYTYGEPQPVEQLVVQICDLKQSYTQFGGLRPFGVSFLFAGYDENLGYQLYHTDPSG 154

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500  82 VSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWvgeLTKGRHEIVP------- 154
Cdd:PTZ00246 155 NYSGWKATAIGQNNQTAQSILKQEWKEDLTLEQGLLLAAKVLTKSMDSTSPKADKIEVGI---LSHGETDGEPiqkmlse 231

                        170       180
                 ....*....|....*....|..
gi 890765500 155 KDIREEAEKYAKESLKEEDESD 176
Cdd:PTZ00246 232 KEIAELLKKVTQEYAKENTNNN 253
PRK03996 PRK03996
archaeal proteasome endopeptidase complex subunit alpha;
2-170 1.97e-22

archaeal proteasome endopeptidase complex subunit alpha;


Pssm-ID: 235192 [Multi-domain]  Cd Length: 241  Bit Score: 89.89  E-value: 1.97e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSaNDGAQLYMIDPSG 81
Cdd:PRK03996  79 ASAGLVADARVLIDRARVEAQINRLTYGEPIGVETLTKKICDHKQQYTQHGGVRPFGVALLIAGVD-DGGPRLFETDPSG 157

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500  82 VSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEvKDKAFELELSWVGELTKgRHEIVPKdirEEA 161
Cdd:PRK03996 158 AYLEYKATAIGAGRDTVMEFLEKNYKEDLSLEEAIELALKALAKANEG-KLDPENVEIAYIDVETK-KFRKLSV---EEI 232


                 ....*....
gi 890765500 162 EKYAKESLK 170
Cdd:PRK03996 233 EKYLEKLLK 241
proteasome_alpha_type_4 cd03752
proteasome_alpha_type_4. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 2-142 3.86e-22

proteasome_alpha_type_4. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239721 [Multi-domain]  Cd Length: 213  Bit Score: 88.56  E-value: 3.86e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPSG 81
Cdd:cd03752   73 AVAGITSDANILINYARLIAQRYLYSYQEPIPVEQLVQRLCDIKQGYTQYGGLRPFGVSFLYAGWDKHYGFQLYQSDPSG 152

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 890765500  82 vSYGYW-GCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELELSWV 142
Cdd:cd03752  153 -NYSGWkATAIGNNNQAAQSLLKQDYKDDMTLEEALALAVKVLSKTMDSTKLTSEKLEFATL 213
proteasome_alpha_type_1 cd03749
proteasome_alpha_type_1. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-104 2.21e-21

proteasome_alpha_type_1. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239718 [Multi-domain]  Cd Length: 211  Bit Score: 86.58  E-value: 2.21e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:cd03749   67 IAIAGLTADARVLSRYMRQECLNYRFVYDSPIPVSRLVSKVAEKAQINTQRYGRRPYGVGLLIAGYD-ESGPHLFQTCPS 145

                         90       100
                 ....*....|....*....|....
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEK 104
Cdd:cd03749  146 GNYFEYKATSIGARSQSARTYLER 169
PRE1 COG0638
20S proteasome, alpha and beta subunits [Posttranslational modification, protein turnover, ...
 1-156 1.20e-20

20S proteasome, alpha and beta subunits [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 440403 [Multi-domain]  Cd Length: 229  Bit Score: 84.81  E-value: 1.20e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYsAVRPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:COG0638   78 VAIAGLVADARELVRLARVEAQLYELRYGEPISVEGLAKLLSDLLQGYTQY-GVRPFGVALLIGGVD-DGGPRLFSTDPS 155

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDEVKDKAFELElswVGELTKGRHEIVPKD 156
Cdd:COG0638  156 GGLYEEKAVAIGSGSPFARGVLEKEYREDLSLDEAVELALRALYSAAERDSASGDGID---VAVITEDGFRELSEE 228
proteasome_alpha_type_7 cd03755
proteasome_alpha_type_7. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-121 1.94e-20

proteasome_alpha_type_7. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239724 [Multi-domain]  Cd Length: 207  Bit Score: 83.95  E-value: 1.94e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSANDGAQLYMIDPS 80
Cdd:cd03755   69 LAFAGLTADARVLINRARLECQSHRLTVEDPVTVEYITRYIAGLQQRYTQSGGVRPFGISTLIVGFDPDGTPRLYQTDPS 148

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAK 121
Cdd:cd03755  149 GTYSAWKANAIGRNSKTVREFLEKNYKEEMTRDDTIKLAIK 189
proteasome_alpha_archeal cd03756
proteasome_alpha_archeal. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 2-124 7.30e-20

proteasome_alpha_archeal. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239725 [Multi-domain]  Cd Length: 211  Bit Score: 82.76  E-value: 7.30e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSaNDGAQLYMIDPSG 81
Cdd:cd03756   71 ATSGLVADARVLIDRARVEAQIHRLTYGEPIDVEVLVKKICDLKQQYTQHGGVRPFGVALLIAGVD-DGGPRLFETDPSG 149

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 890765500  82 VSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIY 124
Cdd:cd03756  150 AYNEYKATAIGSGRQAVTEFLEKEYKEDMSLEEAIELALKALY 192
proteasome_alpha_type_2 cd03750
proteasome_alpha_type_2. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-104 1.93e-19

proteasome_alpha_type_2. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239719 [Multi-domain]  Cd Length: 227  Bit Score: 81.98  E-value: 1.93e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:cd03750   69 MVYSGMGPDFRVLVKKARKIAQQYYLVYGEPIPVSQLVREIASVMQEYTQSGGVRPFGVSLLIAGWD-EGGPYLYQVDPS 147

                         90       100
                 ....*....|....*....|....
gi 890765500  81 GVSYGYWGCAIGKARQAAKTEIEK 104
Cdd:cd03750  148 GSYFTWKATAIGKNYSNAKTFLEK 171
proteasome_alpha_type_5 cd03753
proteasome_alpha_type_5. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 2-129 4.66e-16

proteasome_alpha_type_5. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239722 [Multi-domain]  Cd Length: 213  Bit Score: 72.37  E-value: 4.66e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   2 AVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAY-----TLYSAVRPFGCSFMLGSYSANdGAQLYM 76
Cdd:cd03753   70 AMSGLIADARTLIDHARVEAQNHRFTYNEPMTVESVTQAVSDLALQFgegddGKKAMSRPFGVALLIAGVDEN-GPQLFH 148

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|...
gi 890765500  77 IDPSGVSYGYWGCAIGKARQAAKTEIEKLQMKEMTCRDVVKEVAKIIYIVHDE 129
Cdd:cd03753  149 TDPSGTFTRCDAKAIGSGSEGAQSSLQEKYHKDMTLEEAEKLALSILKQVMEE 201
proteasome_beta_archeal cd03764
Archeal proteasome, beta subunit. The 20S proteasome, multisubunit proteolytic complex, is the ...
 1-81 1.24e-07

Archeal proteasome, beta subunit. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme for non-lysosomal protein degradation in both the cytosol and the nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are both members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 239733  Cd Length: 188  Bit Score: 49.17  E-value: 1.24e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYsavrPFGCSFMLGSYSaNDGAQLYMIDPS 80
Cdd:cd03764   43 MTIAGSVGDAQSLVRILKAEARLYELRRGRPMSIKALATLLSNILNSSKYF----PYIVQLLIGGVD-EEGPHLYSLDPL 117


                 .
gi 890765500  81 G 81
Cdd:cd03764  118 G 118
proteasome_beta cd01912
proteasome beta subunit. The 20S proteasome, multisubunit proteolytic complex, is the central ...
 1-84 1.22e-06

proteasome beta subunit. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.


Pssm-ID: 238893  Cd Length: 189  Bit Score: 46.28  E-value: 1.22e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 890765500   1 MAVAGLLADARSLADIAREEASNFRSNFGYNIPLKHLADRVAmyvhaYTLYSAVR-PFGCSFMLGSYSANDGAQLYMIDP 79
Cdd:cd01912   43 LGTAGSAADTQALTRLLKRNLRLYELRNGRELSVKAAANLLS-----NILYSYRGfPYYVSLIVGGVDKGGGPFLYYVDP 117


                 ....*
gi 890765500  80 SGVSY 84
Cdd:cd01912  118 LGSLI 122
 
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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