COPS9

protein-coding

COP9 signalosome subunit 9

Gene summary

Involved in several processes, including cellular response to UV; negative regulation of protein localization to nucleolus; and negative regulation of protein neddylation. Located in chromatin; cytoplasm; and nucleus. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • MYEOV2

MANE transcript

NM_001163424.2

Inheritance

—

ClinVar variants

U:2

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.72

Max pathogenic AF

—

Genomic locus

chr2:240,126,563-240,136,807

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~10.2 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to COPS9 variants in ClinVar

0 Conditions Cataloged

No annotated ClinVar phenotypes.

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001163424.2. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
0
missense
1
clinvar
1
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total002002
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 13 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001163424.2RefSeqNP_001156896.13MANE Select
ENST00000607357.2EnsemblENSP00000475979.13MANE Select
NM_138336.1RefSeqNP_612209.15Standard
ENST00000307266.7EnsemblENSP00000304147.35Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • positive regulation of cell population proliferation
  • cellular response to UV

Molecular Function

  • protein binding

Cellular Component

  • nuclear chromatin
  • nucleus
  • nucleoplasm
  • cytoplasm
  • COP9 signalosome

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000307266
Coding exons
5
Length
10245
Individuals with no LoFs
125739
Homozygous LoFs
0
Heterozygous LoFs
9
Defined
125748
p
0.0000358
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense-0.2621541451.060.000008411625
Missense (PolyPhen)55.03450.9931445
Synonymous-0.4846358.31.080.00000366498
Loss of Function0.69356.980.7173.88e-771

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.000170.00017rare
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)0.0000180.000018rare
South Asian0.0000330.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Isoform 1: Component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1 and IRF8/ICSBP, possibly via its association with CK2 and PKD kinases. CSN- dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively. Plays a role in cell proliferation. {ECO:0000269|PubMed:26456823}.;

Intolerance Scores

RVIS EVS
0.51
RVIS percentile EVS
80.01

Essentials

Essential (gene trap)
N
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