Rabbit anti-Human PPM1D Polyclonal Antibody

Uniprot Id

O15297

Target Species

Human

Target Name

PPM1D

Target Full Name

Protein phosphatase 1D

Target Function

Involved in the negative regulation of p53 expression. Required for the relief of p53-dependent checkpoint mediated cell cycle arrest. Binds to and dephosphorylates 'Ser-15' of TP53 and 'Ser-345' of CHEK1 which contributes to the functional inactivation of these proteins. Mediates MAPK14 dephosphorylation and inactivation. Is also an important regulator of global heterochromatin silencing and critical in maintaining genome integrity.

Target Involvement

Intellectual developmental disorder with gastrointestinal difficulties and high pain threshold (IDDGIP); Breast cancer (BC); Ovarian cancer (OC)

Target Subcellular Location

Nucleus. Cytoplasm, cytosol.

Target Protein Families

PP2C family

Target Tissue Specificity

Expressed in fetal and adult brain. Also detected in fetal liver and skeletal muscle, but not in their adult counterparts.

Target Synonyms

EC 3.1.3.16; p53 induced protein phosphatase 1; p53-induced protein phosphatase 1; PP2C delta; PP2C-delta; PP2CD; Ppm1d; PPM1D_HUMAN; Protein phosphatase 1D; protein phosphatase 1D magnesium-dependent delta isoform ; Protein phosphatase 2C delta isoform; Protein phosphatase 2C isoform delta; Protein phosphatase magnesium dependent 1 delta; Protein phosphatase magnesium-dependent 1 delta; Protein phosphatase Mg2+/Mn2+ dependent 1D; Protein phosphatase Wip1; Wild type p53 induced phosphatase 1; WIP 1; WIP1

Target Background

The protein encoded by this gene is a member of the PP2C family of Ser/Thr protein phosphatases. PP2C family members are known to be negative regulators of cell stress response pathways. The expression of this gene is induced in a p53-dependent manner in response to various environmental stresses. While being induced by tumor suppressor protein TP53/p53, this phosphatase negatively regulates the activity of p38 MAP kinase, MAPK/p38, through which it reduces the phosphorylation of p53, and in turn suppresses p53-mediated transcription and apoptosis. This phosphatase thus mediates a feedback regulation of p38-p53 signaling that contributes to growth inhibition and the suppression of stress induced apoptosis. This gene is located in a chromosomal region known to be amplified in breast cancer. The amplification of this gene has been detected in both breast cancer cell line and primary breast tumors, which suggests a role of this gene in cancer development.