InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: PSMC3

Summary

InnateDB Protein

IDBP-43357.5

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

PSMC3

Protein Name

proteasome (prosome, macropain) 26S subunit, ATPase, 3

Synonyms

TBP1;

Species

Homo sapiens

Ensembl Protein

ENSP00000298852

InnateDB Gene

IDBG-43355 (PSMC3)

Protein Structure

UniProt Annotation

Function

The 26S protease is involved in the ATP-dependent degradation of ubiquitinated proteins. The regulatory (or ATPase) complex confers ATP dependency and substrate specificity to the 26S complex (By similarity). In case of HIV-1 infection, suppresses Tat-mediated transactivation. {ECO:0000250}.

Subcellular Localization

Cytoplasm {ECO:0000305}. Nucleus {ECO:0000305}. Cytoplasm, P-body {ECO:0000250}. Note=Colocalizes with TRIM5 in the cytoplasmic bodies. {ECO:0000250}.

Disease Associations

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 132 experimentally validated interaction(s) in this database.
They are also associated with 5 interaction(s) predicted by orthology.

Experimentally validated
Total	132 [view]
Protein-Protein	131 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	1 [view]
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	5 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0003713	transcription coactivator activity
GO:0003714	transcription corepressor activity
GO:0005515	protein binding
GO:0005524	ATP binding
GO:0009378	four-way junction helicase activity
GO:0016787	hydrolase activity
GO:0016887	ATPase activity
GO:0017111	nucleoside-triphosphatase activity

Biological Process

GO:0000082	G1/S transition of mitotic cell cycle
GO:0000209	protein polyubiquitination
GO:0000278	mitotic cell cycle
GO:0002474	antigen processing and presentation of peptide antigen via MHC class I
GO:0002479	antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent
GO:0006200	ATP catabolic process
GO:0006281	DNA repair
GO:0006310	DNA recombination
GO:0006521	regulation of cellular amino acid metabolic process
GO:0006915	apoptotic process
GO:0006977	DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest
GO:0010467	gene expression
GO:0016032	viral process
GO:0016070	RNA metabolic process
GO:0016071	mRNA metabolic process
GO:0030163	protein catabolic process
GO:0031145	anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process
GO:0034641	cellular nitrogen compound metabolic process
GO:0042590	antigen processing and presentation of exogenous peptide antigen via MHC class I
GO:0042981	regulation of apoptotic process
GO:0043066	negative regulation of apoptotic process
GO:0044281	small molecule metabolic process
GO:0051436	negative regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
GO:0051437	positive regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
GO:0051439	regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle
GO:2001141	regulation of RNA biosynthetic process

Cellular Component

GO:0000502	proteasome complex
GO:0000932	cytoplasmic mRNA processing body
GO:0005634	nucleus
GO:0005654	nucleoplasm
GO:0005737	cytoplasm
GO:0005829	cytosol
GO:0016020	membrane
GO:0022624	proteasome accessory complex

Protein Structure and Domains

PDB ID

InterPro

IPR003593 AAA+ ATPase domain
IPR003959 ATPase, AAA-type, core
IPR005937 26S proteasome subunit P45
IPR008824 DNA helicase, Holliday junction RuvB type, N-terminal
IPR011704 ATPase, dynein-related, AAA domain
IPR027417 P-loop containing nucleoside triphosphate hydrolase

PFAM

PF00004
PF07724
PF13304
PF05496
PF07728

PRINTS

PIRSF

SMART

SM00382

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt

P17980