PPP4R2: Proteins and Enzymes

Regulatory subunit of serine/threonine-protein phosphatase 4 (PP4). May regulate the activity of PPP4C atcentrosomal microtubule organizing centers. Its interaction with the SMN complex leads to enhance the temporallocalization of snRNPs, suggesting a role of PPP4C in maturation of spliceosomal snRNPs. The PPP4C-PPP4R2-PPP4R3A PP4complex specifically dephosphorylates H2AFX phosphorylated on 'Ser-140' (gamma-H2AFX) generated during DNA replicationand required for DNA DSB repair