Recombinant Human Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform (PPP3CA)

Uniprot Id

Q08209

Target Species

Human

Target Name

PPP3CA

Target Full Name

Protein phosphatase 3 catalytic subunit alpha

Target Function

Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-mediated signals. Many of the substrates contain a PxIxIT motif and/or a LxVP motif. In response to increased Ca(2+) levels, dephosphorylates and activates phosphatase SSH1 which results in cofilin dephosphorylation. In response to increased Ca(2+) levels following mitochondrial depolarization, dephosphorylates DNM1L inducing DNM1L translocation to the mitochondrion. Dephosphorylates heat shock protein HSPB1. Dephosphorylates and activates transcription factor NFATC1. In response to increased Ca(2+) levels, regulates NFAT-mediated transcription probably by dephosphorylating NFAT and promoting its nuclear translocation. Dephosphorylates and inactivates transcription factor ELK1. Dephosphorylates DARPP32. May dephosphorylate CRTC2 at 'Ser-171' resulting in CRTC2 dissociation from 14-3-3 proteins. Dephosphorylates transcription factor TFEB at 'Ser-211' following Coxsackievirus B3 infection, promoting nuclear translocation.

Target Subcellular Location

Cytoplasm. Cell membrane; Peripheral membrane protein. Cell membrane, sarcolemma. Cytoplasm, myofibril, sarcomere, Z line. Cell projection, dendritic spine.

Target Protein Families

PPP phosphatase family, PP-2B subfamily

Target Tissue Specificity

Expressed in keratinocytes (at protein level).

Target Synonyms

Alpha isoform formerly PPP2B; Calcineurin A alpha; Calcineurin A1; CalcineurinA; Calmodulin dependent calcineurin A subunit alpha isoform; Calmodulin-dependent calcineurin A subunit alpha isoform; CALN; CALNA 1; CALNA; CALNA1; CAM PRP catalytic subunit; CAM-PRP catalytic subunit; CCN 1; CCN1; CNA 1; CNA alpha; CNA; CNA1; PP2BA_HUMAN; PPP2B; Ppp3ca; Protein phosphatase 2B catalytic subunit ; Protein phosphatase 3 (formerly 2B) catalytic subunit alpha isoform; Protein phosphatase 3 catalytic subunit alpha isoform PPP3CA; Protein phosphatase 3 catalytic subunit alpha isozyme; Serine/threonine protein phosphatase 2B catalytic subunit alpha isoform; Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform

Target Background

Enables several functions, including ATPase binding activity; calmodulin binding activity; and calmodulin-dependent protein phosphatase activity. Involved in several processes, including calcineurin-NFAT signaling cascade; peptidyl-serine dephosphorylation; and response to calcium ion. Located in several cellular components, including cytosol; dendritic spine; and nucleoplasm. Part of calcineurin complex. Colocalizes with cytoplasmic side of plasma membrane. Implicated in developmental and epileptic encephalopathy 91. Biomarker of focal segmental glomerulosclerosis and schizophrenia.