Immunogen sequence: LDAHEETISI EKRSDLQDEL DINELPNCKI NQEDSVPLIS DAVENMDSTL HYIHSDSDLS NNSSFSPDEE RRTKVQ. Regulatory subunit of serine/threonine-protein phosphatase 4. May play a role in regulation of cell division in renal glomeruli. The PPP4C-PPP4R1 PP4