PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34228795-3 2021 PP2A is responsible for at least 50% of total Ser/Thr dephosphorylation in most cell types and is predominantly found as trimeric holoenzymes composed of catalytic (C), scaffolding (A) and variable regulatory (B) subunits. Serine 46-49 protein phosphatase 2 phosphatase activator Homo sapiens 0-4