PPP6R2 (Protein Phosphatase 6 Regulatory Subunit 2): PPP6R2 is a gene that encodes a regulatory subunit of protein phosphatase 6 (PP6). PP6 is involved in the dephosphorylation of target proteins and plays key roles in cell cycle regulation, DNA damage repair, and cellular signaling. PPP6R2 helps modulate the activity and specificity of PP6, influencing these critical cellular processes.