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PPP4C

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For Research Use Only. Not For Clinical Use.


Background

Enables protein serine/threonine phosphatase activity. Involved in regulation of double-strand break repair via homologous recombination. Located in cytosol; nucleoplasm; and plasma membrane. Part of chromatin and protein phosphatase 4 complex. [provided by Alliance of Genome Resources, Mar 2025]
Protein class

Enzymes, Metabolic proteins

Predicted location

Intracellular

Single cell type specificity

Low cell type specificity

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Serine/threonine-protein phosphatase 4 (PP4) occurs in different assemblies of the catalytic and one or more regulatory subunits (PubMed:12668731, 18715871, 16085932, 18614045). Component of the PP4 complexes PPP4C-PPP4R1, PPP4C-PPP4R2, PPP4C-PPP4R2-PPP4R3A, PPP4C-PPP4R2-PPP4R3B and PPP4C-PPP4R4 (PubMed:12668731, 18715871, 16085932, 18614045). The PPP4C-PPP4R2 complex appears to be a tetramer composed of 2 molecules of PPP4C and 2 molecules of PPP4R2 (PubMed:12668731). Interacts with REL, NFKB1/p50 and RELA (PubMed:1336397). Interacts with SMN1 and GEMIN4 (PubMed:12668731). Interacts with IRS4 (phosphorylated) (PubMed:15331607). Interacts with SMEK1/PPP4R3A; the interaction requires PP4R2 (PubMed:16085932). Interacts with HDAC3 (PubMed:15805470).

Molecular function

Hydrolase, Protein phosphatase

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