Protein Name
Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform
UniProt ID
Ensembl Gene ID
NCBI Gene ID
Molecular Weight
58644
Protein Length
521
Protein Domain
3D Structure
(PDB ID : 4il1)
Target by Small Molecules
Protein-protein Interaction Database
Gene Expression
Drugs and Diseases
Enzyme Class
Catalytic Site
Catalytic Activity
H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] + phosphateH2O + O-phospho-L-threonyl-[protein] = L-threonyl-[protein] + phosphate
Localization
Cytoplasm,Cell membrane,Cell membrane,Sarcolemma,Cytoplasm,Myofibril,Sarcomere,Z line,Cell projection,Dendritic spine;
Function
Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-mediated signals (PubMed:1322410, PubMed:24018048). Many of the substrates contain a PxIxIT motif and/or a LxVP motif (By similarity). In response to increased Ca(2+) levels, dephosphorylates and activates phosphatase SSH1 which results in cofilin dephosphorylation (By similarity). In response to increased Ca(2+) levels following mitochondrial depolarization, dephosphorylates DNM1L inducing DNM1L translocation to the mitochondrion (By similarity). Dephosphorylates heat shock protein HSPB1 (By similarity). Dephosphorylates and activates transcription factor NFATC1 (By similarity). Dephosphorylates and inactivates transcription factor ELK1 (By similarity). Dephosphorylates DARPP32 (By similarity).
Gene Ontology
GO:0005955; GO:0005737; GO:0009898; GO:0005829; GO:0043197; GO:0098978; GO:0016020; GO:0005739; GO:0005654; GO:0042383; GO:0098685; GO:0045202; GO:0030018; GO:0004723; GO:0005516; GO:0033192; GO:0016018; GO:0019899; GO:0046872; GO:0004721; GO:0046982; GO:0004722; GO:0007420; GO:0097720; GO:0033173; GO:0006816; GO:0014898; GO:0035690; GO:0071333; GO:0060079; GO:0000082; GO:0033555; GO:0045955; GO:0035562; GO:0050774; GO:0046676; GO:1903799; GO:0070886; GO:1903244; GO:0045785; GO:0030335; GO:1905205; GO:0051091; GO:0045807; GO:0045944; GO:0099170; GO:0006470; GO:0006606; GO:0001975; GO:0051592; GO:0048741; GO:0014883