Biolegend, 934201, Purified anti-PPM1B Antibody

Protein phosphatase 1B (PPM1B) is a member of the Protein Phosphatase 2C (PP2C) family of monomeric metal-dependent Ser/Thr protein phosphatases which are dependent on Mg2+ and Mn2+ for their catalytic activity, and function in the negative regulation of cellular stress signaling pathways. PPM1B contributes to the regulation of both cell senescence and proliferation as a regulator of the p38 MAPK pathway and negatively regulates necroptosis through dephosphorylation of receptor-interacting protein 2 (RIP3), one of the primary mediators of necrotic programmed cell death. It is one of a limited number of proteins that can dephosphorylate nuclear receptor PPARγ, thereby stimulating its transcription and contributing to its role in cellular differentiation and metabolism. It is also associated with the dephosphorylation of p53, TAK1, and, in some cell types, the negative regulation of NF-κB signaling through dephosphorylation of nuclear factor kappa B kinase subunit β (IKKβ). PPM1B plays a role in the mediation of antiviral response by acting as a TBK1 phosphatase via dephosphorylation at Ser172 and suppresses cancer cell proliferation and tumor progression through the dephosphorylation of Rho guanine nucleotide dissociation inhibitor 1 (RhoGDI1), a key regulator of Rho GTPases.