WW domain-containing adapter protein with coiled-coil (WAC)

Acts as a linker between gene transcription and histone H2B monoubiquitination in'Lys-120' (H2BK120ub1) (PubMed:21329877). Interacts with the RNA polymerase II transcriptional machinery via its WW domain name and with RNF20-RNF40 via its coiled coil region, thereby linking and regulating H2BK120ub1 and gene transcription (PubMed:21329877).

Positive regulator of amino acid starvation- induced autophagy (PubMed:22354037). Also acts as a negative regulator of basal autophagy (PubMed:26812014).