SUDS3Sin3 histone deacetylase corepressor complex component SDS3 is an enzyme that in humans is encoded by the SUDS3 gene.FunctionSDS3 is a subunit of the histone deacetylase -dependent SIN3A corepressor complex.InteractionsSUDS3 has been shown to interact with HDAC1, Host cell factor C1, SIN3B and SIN3A.