InnateDB Protein
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IDBP-102370.6
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Last Modified
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2014-10-13 [Report errors or provide feedback]
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Gene Symbol
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PSMB4
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Protein Name
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proteasome (prosome, macropain) subunit, beta type, 4
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Synonyms
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HN3; HsN3; PROS-26; PROS26;
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Species
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Homo sapiens
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Ensembl Protein
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ENSP00000290541
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InnateDB Gene
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IDBG-102368 (PSMB4)
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Protein Structure
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Function |
The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. Mediates the lipopolysaccharide-induced signal macrophage proteasome (By similarity). SMAD1/OAZ1/PSMB4 complex mediates the degradation of the CREBBP/EP300 repressor SNIP1. {ECO:0000250, ECO:0000269PubMed:12097147}.
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Subcellular Localization |
Cytoplasm {ECO:0000255PROSITE- ProRule:PRU00809}. Nucleus {ECO:0000250}.
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Disease Associations |
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Tissue Specificity |
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Comments |
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Number of Interactions
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This gene and/or its encoded proteins are associated with 91 experimentally validated interaction(s) in this database.
They are also associated with 5 interaction(s) predicted by orthology.
Experimentally validated |
Total |
91
[view]
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Protein-Protein |
90
[view]
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Protein-DNA |
1
[view]
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Protein-RNA |
0
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DNA-DNA |
0
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RNA-RNA |
0
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DNA-RNA |
0
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Predicted by orthology |
Total |
5 [view]
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Molecular Function |
Accession |
GO Term |
GO:0001530
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lipopolysaccharide binding
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GO:0004298
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threonine-type endopeptidase activity
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Biological Process |
GO:0000082
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G1/S transition of mitotic cell cycle
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GO:0000209
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protein polyubiquitination
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GO:0000278
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mitotic cell cycle
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GO:0002474
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antigen processing and presentation of peptide antigen via MHC class I
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GO:0002479
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antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent
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GO:0002862
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negative regulation of inflammatory response to antigenic stimulus
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GO:0006521
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regulation of cellular amino acid metabolic process
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GO:0006915
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apoptotic process
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GO:0006977
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DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest
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GO:0010467
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gene expression
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GO:0016032
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viral process
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GO:0016070
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RNA metabolic process
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GO:0016071
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mRNA metabolic process
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GO:0031145
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anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process
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GO:0034641
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cellular nitrogen compound metabolic process
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GO:0042590
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antigen processing and presentation of exogenous peptide antigen via MHC class I
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GO:0042981
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regulation of apoptotic process
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GO:0043066
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negative regulation of apoptotic process
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GO:0044281
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small molecule metabolic process
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GO:0051436
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negative regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
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GO:0051437
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positive regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
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GO:0051439
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regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
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GO:0051603
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proteolysis involved in cellular protein catabolic process
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Cellular Component |
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PDB ID |
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InterPro |
IPR001353
Proteasome, subunit alpha/beta
IPR016295
Proteasome endopeptidase complex, beta subunit
IPR029055
Nucleophile aminohydrolases, N-terminal
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PFAM |
PF00227
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PRINTS |
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PIRSF |
PIRSF001213
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SMART |
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TIGRFAMs |
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Modification |
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SwissProt |
P28070
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PhosphoSite |
PhosphoSite-P28070
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TrEMBL |
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UniProt Splice Variant |
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Entrez Gene |
5692
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UniGene |
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RefSeq |
NP_002787
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HUGO |
HGNC:9541
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OMIM |
602177
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CCDS |
CCDS996
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HPRD |
03710
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IMGT |
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EMBL |
AK313825
AL589764
BT006917
CH471121
CR456820
D26600
S71381
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GenPept |
AAB31085
AAP35563
BAA05647
BAG36560
CAG33101
CAI16806
EAW53442
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