Protein Phosphatase 1

**Definition:** A eukayrotic protein serine-threonine phosphatase subtype that dephosphorylates a wide variety of cellular proteins. The enzyme is comprised of a catalytic subunit and regulatory subunit. Several isoforms of the protein phosphatase catalytic subunit exist due to the presence of multiple genes and the alternative splicing of their mRNAs. A large number of proteins have been shown to act as regulatory subunits for this enzyme. Many of the regulatory subunits have additional cellular functions.

**Tree numbers:** - D08.811.277.352.650.625.687 - D12.776.476.559.687

**Synonyms:** - Protein Phosphatase-1 - Type 1 Serine Threonine Protein Phosphatase - PP1c Enzyme