PSMC5proteasome 26S subunit, ATPase 5
Autism Reports / Total Reports
2 / 3Rare Variants / Common Variants
8 / 0Aliases
-Associated Syndromes
-Chromosome Band
17q23.3Associated Disorders
-Relevance to Autism
Yu et al., 2024 described a cohort of seven individuals (two of whom were from DECIPHER) with heterozygous variants in the PSMC5 gene and presenting with a neurodevelopmental disorder characterized by developmental delay, intellectual disability, and behavioral anomalies, including five individuals with autism spectrum disorder or autistic features; functional assessment of a recurrent p.Pro320Arg missense variant that was arose de novo in four individuals from this cohort (three of whom presenting with autism spectrum disorder) demonstrated impaired proteasome function by reduced association between the 19S regulatory particle and the 20S core particle. Three additional ASD probands (one from the Simons Simplex Collection, two from the SPARK cohort) were also found to have de novo missense variants in the PSMC5 gene that were predicted to be deleterious (REVEL > 0.5) and were either absent or very rare in both ExAC and gnomAD; one of the SPARK probands carried the functionally relevant p.Pro320Arg missense variant.
Molecular Function
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 ATPase subunits, a member of the triple-A family of ATPases which have a chaperone-like activity. In addition to participation in proteasome functions, this subunit may participate in transcriptional regulation since it has been shown t
External Links
SFARI Genomic Platforms
Reports related to PSMC5 (3 Reports)
# | Type | Title | Author, Year | Autism Report | Associated Disorders |
---|---|---|---|---|---|
1 | Support | The contribution of de novo coding mutations to autism spectrum disorder | Iossifov I et al. (2014) | Yes | - |
2 | Support | - | Zhou X et al. (2022) | Yes | - |
3 | Primary | - | Zhong-Qiu Yu et al. () | No | ASD or autistic features, ADHD |
Rare Variants (8)
Status | Allele Change | Residue Change | Variant Type | Inheritance Pattern | Parental Transmission | Family Type | PubMed ID | Author, Year |
---|---|---|---|---|---|---|---|---|
c.959C>G | p.Pro320Arg | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.1084G>A | p.Val362Met | missense_variant | De novo | - | - | 35982159 | Zhou X et al. (2022) | |
c.479A>C | p.Glu160Ala | missense_variant | Unknown | - | - | 38776958 | Zhong-Qiu Yu et al. () | |
c.959C>G | p.Pro320Arg | missense_variant | De novo | - | - | 38776958 | Zhong-Qiu Yu et al. () | |
c.205C>T | p.Gln69Ter | stop_gained | De novo | - | Simplex | 38776958 | Zhong-Qiu Yu et al. () | |
c.959C>G | p.Pro320Arg | missense_variant | De novo | - | Simplex | 38776958 | Zhong-Qiu Yu et al. () | |
c.973C>T | p.Arg325Trp | missense_variant | De novo | - | Simplex | 38776958 | Zhong-Qiu Yu et al. () | |
c.772C>T | p.Arg258Trp | missense_variant | De novo | - | Simplex | 25363768 | Iossifov I et al. (2014) |
Common Variants
No common variants reported.
SFARI Gene score
Suggestive Evidence


Score Delta: Score remained at 3
criteria met
See SFARI Gene'scoring criteriaThe literature is replete with relatively small studies of candidate genes, using either common or rare variant approaches, which do not reach the criteria set out for categories 1 and 2. Genes that had two such lines of supporting evidence were placed in category 3, and those with one line of evidence were placed in category 4. Some additional lines of "accessory evidence" (indicated as "acc" in the score cards) could also boost a gene from category 4 to 3.
7/1/2024

Increased from to 3
Krishnan Probability Score
Score 0.57105838642648
Ranking 831/25841 scored genes
[Show Scoring Methodology]
ExAC Score
Score 0.96957142539059
Ranking 2368/18225 scored genes
[Show Scoring Methodology]
Sanders TADA Score
Score 0.68647976893482
Ranking 1076/18665 scored genes
[Show Scoring Methodology]
Zhang D Score
Score 0.074692277465215
Ranking 6658/20870 scored genes
[Show Scoring Methodology]