PPPM1A 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. Belongs to the PP2C family. 3 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
Protein type: EC 3.1.3.16; Motility/polarity/chemotaxis; Protein phosphatase, Ser/Thr (non-receptor)
Chromosomal Location of Human Ortholog: 12|12 C3
Cellular Component:  cytoplasm; cytosol; membrane; neuron projection; nucleus; plasma membrane
Molecular Function:  calmodulin-dependent protein phosphatase activity; catalytic activity; cation binding; hydrolase activity; ion channel binding; magnesium ion binding; magnesium-dependent protein serine/threonine phosphatase activity; manganese ion binding; metal ion binding; phosphoprotein phosphatase activity; protein C-terminus binding; protein serine/threonine phosphatase activity; R-SMAD binding
Biological Process:  cellular response to transforming growth factor beta stimulus; dephosphorylation; N-terminal protein myristoylation; negative regulation of BMP signaling pathway; negative regulation of I-kappaB kinase/NF-kappaB signaling; negative regulation of NIK/NF-kappaB signaling; negative regulation of SMAD protein complex assembly; negative regulation of transforming growth factor beta receptor signaling pathway; peptidyl-threonine dephosphorylation; positive regulation of canonical Wnt signaling pathway; positive regulation of protein export from nucleus; positive regulation of transcription, DNA-templated; protein dephosphorylation
Reference #:  P49443 (UniProtKB)
Alt. Names/Synonyms: 2310003C21Rik; 2900017D14Rik; AI427932; AU017636; MMPa; MMPa-2; MPP; Mpp alpha; MPPa-1; PP2C-alpha; Ppm1a; Pppm1a; Protein phosphatase 1A; protein phosphatase 1A, magnesium dependent, alpha isoform; Protein phosphatase 2C isoform alpha; Protein phosphatase IA
Gene Symbols: Ppm1a
Molecular weight: 42,433 Da
Basal Isoelectric point: 5.19  Predict pI for various phosphorylation states
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PPPM1A

Protein Structure Not Found.


Cross-references to other databases:  STRING  |  Reactome  |  BioGPS  |  Pfam  |  ENZYME  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  Ensembl Gene