PSMD8
protein-codingproteasome 26S subunit, non-ATPase 8, the group of Proteasome
Gene 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 a non-ATPase subunit of the 19S regulator. A pseudogene has been identified on chromosome 1. [provided by RefSeq, Jul 2008]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~9.3 kbGenCC 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 PSMD8 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_002812.5. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 3 | 2 | 5 | |||
| missense | 40 | 2 | 1 | 43 | ||
| nonsense | 1 | 1 | ||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 45 | 2 | 3 | 50 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_002803.2 | 7 | MANE Select | |
| Ensembl | ENSP00000215071.4 | 7 | MANE Select | |
| Ensembl | ENSP00000467146.2 | 3 | Standard | |
| Ensembl | ENSP00000465418.1 | 2 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Epstein-Barr virus infection - Homo sapiens (human)
- Proteasome - Homo sapiens (human)
- Proteasome Degradation
- Parkin-Ubiquitin Proteasomal System pathway
- TLR NFkB
Biological Process
- protein deubiquitination
- proteasome-mediated ubiquitin-dependent protein catabolic process
- post-translational protein modification
Cellular Component
- proteasome complex
- nucleus
- nucleoplasm
- cytosol
- proteasome regulatory particle
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000215071
- Coding exons
- 7
- Length
- 9289
- Individuals with no LoFs
- 125569
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 14
- Defined
- 125583
- p
- 0.0000557
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.485 | 173 | 192 | 0.902 | 0.0000102 | 2188 |
| Missense (PolyPhen) | 28 | 50.722 | 0.55202 | 641 | ||
| Synonymous | 0.0780 | 78 | 78.9 | 0.989 | 0.00000421 | 687 |
| Loss of Function | 2.64 | 5 | 16.6 | 0.300 | 8.96e-7 | 180 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000031 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00011 | 0.00011 | rare |
| Finnish | 0.000098 | 0.000092 | rare |
| European (Non-Finnish) | 0.000063 | 0.000062 | rare |
| South Asian | 0.000037 | 0.000033 | rare |
| Other | 0.00016 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular functions, and by removing proteins whose functions are no longer required. Therefore, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair. {ECO:0000269|PubMed:1317798}.;
Intolerance Scores
- LoFtool
- 0.273
- RVIS EVS
- -0.36
- RVIS percentile EVS
- 28.63
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- E
- Essential (gene trap)
- E
- Indispensability pred.
- E
- Indispensability score
- 0.925
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |