Summary

Name PPP3CA
Full Name Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform
Synonyms CAM-PRP catalytic subunit, Calmodulin-dependent calcineurin A subunit alpha isoform | CALNA, CNA
Primary ID Q08209
Links - -
Type protein
Relations 47
Inhibitors tacrolimus (anhydrous); cyclosporin A
Function Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-mediated signals (PubMed:15671020, PubMed:18838687, PubMed:19154138, PubMed:23468591). Many of the substrates contain a PxIxIT motif and/or a LxVP motif (PubMed:17498738, PubMed:17502104, PubMed:23468591, PubMed:27974827, PubMed:22343722). In response to increased Ca(2+) levels, dephosphorylates and activates phosphatase SSH1 which results in cofilin dephosphorylation (PubMed:15671020). In response to increased Ca(2+) levels following mitochondrial depolarization, dephosphorylates DNM1L inducing DNM1L translocation to the mitochondrion (PubMed:18838687). Dephosphorylates heat shock protein HSPB1 (By similarity). Dephosphorylates and activates transcription factor NFATC1 (PubMed:19154138). In response to increased Ca(2+) levels, regulates NFAT-mediated transcription probably by dephosphorylating NFAT and promoting its nuclear translocation (PubMed:26248042). Dephosphorylates and inactivates transcription factor ELK1 (PubMed:19154138). Dephosphorylates DARPP32 (PubMed:19154138). May dephosphorylate CRTC2 at 'Ser-171' resulting in CRTC2 dissociation from 14-3-3 proteins (PubMed:30611118).

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▶Modifications Tables

Relations


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Regulator Mechanism target score ℹ
+ up-regulates activity img/direct-activation.png dephosphorylation NFATC2 0.644
Publications: 15 Organism: Homo Sapiens
Pathways:IGF and Myogenesis
+ down-regulates img/direct_inhibition.png dephosphorylation FLNA 0.258
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png dephosphorylation DNM1L 0.273
Publications: 1 Organism: Homo Sapiens
+