Relevance to Autism

Three rare and potentially damaging de novo missense variants in the PSMD11 gene have been identified in ASD probands from the SPARK cohort and the MSSNG cohort (Zhou et al., 2022), while two protein-truncating variants in this gene were observed in ASD probands, compared to none in controls, from a case-control cohort (Trost et al., 2022). Transmission and de novo association (TADA) analysis of whole-exome and whole-genome sequencing data from the Autism Sequencing Consortium, the Simons Simplex Collection, the MSSNG cohort, and the SPARK cohort in Trost et al., 2022 identified PSMD11 as an ASD-associated gene with a false discovery rate (FDR) < 0.1.

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. This gene encodes a member of the proteasome subunit S9 family that functions as a non-ATPase subunit of the 19S regulator and is phosphorylated by AMP-activated protein kinase.

External Links

References