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PSMD2 proteasome 26S subunit ubiquitin receptor, non-ATPase 2 [ Homo sapiens (human) ]

Gene ID: 5708, updated on 5-Sep-2021

Summary

Official Symbol
PSMD2provided by HGNC
Official Full Name
proteasome 26S subunit ubiquitin receptor, non-ATPase 2provided by HGNC
Primary source
HGNC:HGNC:9559
See related
Ensembl:ENSG00000175166 MIM:606223
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
S2; P97; RPN1; TRAP2
Summary
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes one of the non-ATPase subunits of the 19S regulator lid. In addition to participation in proteasome function, this subunit may also participate in the TNF signalling pathway since it interacts with the tumor necrosis factor type 1 receptor. A pseudogene has been identified on chromosome 1. Alternative splicing results in multiple transcript variants of this gene. [provided by RefSeq, Jul 2013]
Expression
Ubiquitous expression in testis (RPKM 64.5), brain (RPKM 40.8) and 25 other tissues See more
Orthologs
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Genomic context

See PSMD2 in Genome Data Viewer
Location:
3q27.1
Exon count:
22
Annotation release Status Assembly Chr Location
109.20210514 current GRCh38.p13 (GCF_000001405.39) 3 NC_000003.12 (184299241..184309050)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 3 NC_000003.11 (184017029..184026838)

Chromosome 3 - NC_000003.12Genomic Context describing neighboring genes Neighboring gene EEF1AKMT4-ECE2 readthrough Neighboring gene calcium/calmodulin dependent protein kinase II inhibitor 2 Neighboring gene endothelin converting enzyme 2 Neighboring gene eukaryotic translation initiation factor 4 gamma 1 Neighboring gene small nucleolar RNA, C/D box 66 Neighboring gene family with sequence similarity 131 member A Neighboring gene chloride voltage-gated channel 2

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env Tandem affinity purification and mass spectrometry analysis identify 26S proteasome non-ATPase regulatory subunit 2 (PSMD2), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Gag-Pol gag-pol Tandem affinity purification and mass spectrometry analysis identify 26S proteasome non-ATPase regulatory subunit 2 (PSMD2), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Nef nef Tandem affinity purification and mass spectrometry analysis identify 26S proteasome non-ATPase regulatory subunit 2 (PSMD2), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Pr55(Gag) gag Tandem affinity purification and mass spectrometry analysis identify 26S proteasome non-ATPase regulatory subunit 2 (PSMD2), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Tat tat Expression of HIV-1 Tat upregulates the abundance of proteasome (prosome, macropain) 26S subunit, non-ATPase, 2 (PSMD2) in the nucleoli of Jurkat T-cells PubMed
tat HIV-1 Tat slightly enhances the activity of the purified 26 S proteasome PubMed
tat Amino acids Lys51, Arg52, and Asp67 of HIV-1 Tat represent the proteasome binding site of Tat, and Tat amino acids 37-72 are necessary for proteasomal interaction and suppression of 11 S regulator-mediated antigen presentation PubMed
tat HIV-1 Tat inhibits the peptidase activity of the 20 S proteasome and interferes with the formation of the 20 S proteasome-11 S regulator complex PubMed
tat HIV-1 Tat binds to the alpha2, alpha4, alpha6, alpha7, beta1, beta2, beta3, beta5, beta6, beta7, LMP7/beta5i, and MECL1/beta2i subunits of the proteasome 20 S core structure and can inhibit cellular proteasome function PubMed
Vif vif HIV-1 Vif binds to the cellular cytidine deaminase APOBEC3G and targets it for degradation through an interaction with the proteasome, thereby inhibiting APOBEC3G mediated restriction of HIV-1 replication PubMed
Vpr vpr Pull-down analysis shows that S2 and S5a, two components of the 19S subunit of the 26S proteasome, interact with HIV-1 Vpr PubMed
integrase gag-pol Proteasomal degradation of HIV-1 integrase in mammalian cells occurs by the N-end rule pathway PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Clone Names

  • MGC14274

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables enzyme regulator activity IEA
Inferred from Electronic Annotation
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Process Evidence Code Pubs
involved_in proteasome-mediated ubiquitin-dependent protein catabolic process IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
involved_in regulation of catalytic activity IEA
Inferred from Electronic Annotation
more info
 
involved_in regulation of protein catabolic process IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in cytosol TAS
Traceable Author Statement
more info
 
located_in extracellular exosome HDA PubMed 
located_in extracellular region TAS
Traceable Author Statement
more info
 
located_in ficolin-1-rich granule lumen TAS
Traceable Author Statement
more info
 
located_in membrane HDA PubMed 
located_in nucleoplasm TAS
Traceable Author Statement
more info
 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
part_of proteasome accessory complex ISS
Inferred from Sequence or Structural Similarity
more info
 
part_of proteasome complex IDA
Inferred from Direct Assay
more info
PubMed 
part_of proteasome regulatory particle TAS
Traceable Author Statement
more info
PubMed 
part_of proteasome regulatory particle, base subcomplex IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
is_active_in proteasome storage granule IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in secretory granule lumen TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
26S proteasome non-ATPase regulatory subunit 2
Names
55.11 protein
TNFR-associated protein 2
proteasome (prosome, macropain) 26S subunit, non-ATPase, 2
proteasome 26S subunit, non-ATPase 2
protein 55.11
tumor necrosis factor type 1 receptor-associated protein 2

NCBI Reference Sequences (RefSeq)

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001278708.2NP_001265637.1  26S proteasome non-ATPase regulatory subunit 2 isoform 2

    See identical proteins and their annotated locations for NP_001265637.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR and the 5' coding region and initiates translation at a downstream start codon, compared to variant 1. It encodes isoform 2, which is shorter at the N-terminus compared to isoform 1.
    Source sequence(s)
    AK301759, AK302177, BC002997
    Consensus CDS
    CCDS63853.1
    UniProtKB/Swiss-Prot
    Q13200
    Related
    ENSP00000416028.1, ENST00000439383.5
    Conserved Domains (1) summary
    cl28113
    Location:4776
    PC_rep; Proteasome/cyclosome repeat
  2. NM_001278709.2NP_001265638.1  26S proteasome non-ATPase regulatory subunit 2 isoform 3

    See identical proteins and their annotated locations for NP_001265638.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) differs in the 5' UTR and the 5' coding region and initiates translation at an alternate start codon, compared to variant 1. It encodes isoform 3, which has a shorter and distinct N-terminus compared to isoform 1.
    Source sequence(s)
    AK301759, AK302177, BC002997
    Consensus CDS
    CCDS63854.1
    UniProtKB/Swiss-Prot
    Q13200
    Related
    ENSP00000402618.1, ENST00000435761.5
    Conserved Domains (1) summary
    COG5110
    Location:3747
    RPN1; 26S proteasome regulatory complex component [Posttranslational modification, protein turnover, chaperones]
  3. NM_002808.5NP_002799.3  26S proteasome non-ATPase regulatory subunit 2 isoform 1

    See identical proteins and their annotated locations for NP_002799.3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1).
    Source sequence(s)
    BC002997, HY006627
    Consensus CDS
    CCDS3258.1
    UniProtKB/Swiss-Prot
    Q13200
    Related
    ENSP00000310129.4, ENST00000310118.9
    Conserved Domains (1) summary
    COG5110
    Location:26906
    RPN1; 26S proteasome regulatory complex component [Posttranslational modification, protein turnover, chaperones]

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20210514

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000003.12 Reference GRCh38.p13 Primary Assembly

    Range
    184299241..184309050
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)
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