PPP1CB (Protein Phosphatase 1 Catalytic Subunit Beta): PPP1CB is a gene that encodes a catalytic subunit of protein phosphatase 1 — an enzyme vital for regulating cellular processes through dephosphorylation. It plays key roles in muscle contraction, glycogen metabolism, and cell division. Dysregulation of PPP1CB activity has been associated with various diseases, including heart disorders and certain cancers.