HDAC10
Function
Polyamine deacetylase (PDAC), which acts preferentially on N(8)-acetylspermidine, and also on acetylcadaverine and acetylputrescine (PubMed:28516954). Exhibits attenuated catalytic activity toward N(1),N(8)-diacetylspermidine and very low activity, if any, toward N(1)-acetylspermidine (PubMed:28516954). Histone deacetylase activity has been observed in vitro (PubMed:11677242, PubMed:11726666, PubMed:11739383, PubMed:11861901). Has also been shown to be involved in MSH2 deacetylation (PubMed:26221039). The physiological relevance of protein/histone deacetylase activity is unclear and could be very weak (PubMed:28516954). May play a role in the promotion of late stages of autophagy, possibly autophagosome-lysosome fusion and/or lysosomal exocytosis in neuroblastoma cells (PubMed:23801752, PubMed:29968769). May play a role in homologous recombination (PubMed:21247901). May promote DNA mismatch repair (PubMed:26221039).
Involvement in disease
In neuroblastoma cells, may promote autophagy in response to chemotherapy-induced DNA damage and efflux of chemotherapeutics via lysosomal exocytosis, hence protecting cells from cytotoxic agents (PubMed:23801752, PubMed:29968769). Expression levels may correlate with survival in neuroblastoma patients, with low levels in the tumor correlating with long-term patient survival and high expression with poor prognosis (PubMed:23801752). Therefore has been proposed as a biomarker to predict neuroblastoma chemoresistance and treatment outcome (PubMed:23801752).
Sequence Similarities
Belongs to the histone deacetylase family. HD type 2 subfamily.
Tissue Specificity
Widely expressed with high levels in liver and kidney.
Cellular localization
- Cytoplasm
- Nucleus
- Excluded from nucleoli.
Alternative names
Polyamine deacetylase HDAC10, Histone deacetylase 10, HD10, HDAC10