Tchem PPM1A Protein phosphatase 1A

Protein Summary

Description

Enzyme with a broad specificity. Negatively regulates TGF-beta signaling through dephosphorylating SMAD2 and SMAD3, resulting in their dissociation from SMAD4, nuclear export of the SMADs and termination of the TGF-beta-mediated signaling. Dephosphorylates PRKAA1 and PRKAA2. Plays an important role in the termination of TNF-alpha-mediated NF-kappa-B activation through dephosphorylating and inactivating IKBKB/IKKB. 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. This phosphatase dephosphorylates, and negatively regulates the activities of, MAP kinases and MAP kinase kinases. It has been shown to inhibit the activation of p38 and JNK kinase cascades induced by environmental stresses. This phosphatase can also dephosphorylate cyclin-dependent kinases, and thus may be involved in cell cycle control. Overexpression of this phosphatase is reported to activate the expression of the tumor suppressor gene TP53/p53, which leads to G2/M cell cycle arrest and apoptosis. Three alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• P35813
• B5BU11
• J3KNM0
• O75551

Gene Name

• PPM1A

Ensembl ID

• ENST00000325642
• ENSP00000327255
• ENSG00000100614
• ENST00000325658
• ENSP00000314850
• ENST00000395076
• ENSP00000378514

Symbol

• PPPM1A
• PP2CA
• PP2Calpha
• PP2C-ALPHA

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
kinase perturbation	1
transcription factor perturbation	0.98
biological process	0.96
virus perturbation	0.96
microRNA	0.91

Protein Classes

PANTHER Classes

Protein / Hydrolase / Phosphatase / Protein Phosphatase / Protein Phosphatase 1a

Protein / Enzyme Modulator / Kinase Modulator / Kinase Inhibitor / Protein Phosphatase 1a

DTO Classes

Protein / Enzyme / Hydrolase / Phosphatase / Protein Phosphatase / Protein Phosphatase 1a

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 94.46   (req: < 5)

Gene RIFs: 44   (req: <= 3)

Antibodies: 414   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 94.46   (req: >= 5)

Gene RIFs: 44   (req: > 3)

Antibodies: 414   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 21

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 1

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0