FEATURES

FAMILY

DESCRIPTION

Also known as PP2BB_HUMAN, PPP3CB, CALNA2, CALNB, CNA2. Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-mediated signals (PubMed:19154138, PubMed:26794871). Dephosphorylates and activates transcription factor NFATC1 (PubMed:19154138). Dephosphorylates and inactivates transcription factor ELK1 (PubMed:19154138). Dephosphorylates DARPP32 (PubMed:19154138). Negatively regulates MAP3K14/NIK signaling via inhibition of nuclear translocation of the transcription factors RELA and RELB (By similarity). May play a role in skeletal muscle fiber type specification (By similarity). Forms a complex composed of a calmodulin-dependent catalytic subunit (also known as calcineurin A) and a regulatory Ca(2+)-binding subunit (also known as calcineurin B). There are three catalytic subunits, each encoded by a separate gene (PPP3CA, PPP3CB, and PPP3CC) and two regulatory subunits which are also encoded by separate genes (PPP3R1 and PPP3R2). In response to an increase in Ca(2+) intracellular levels, forms a complex composed of PPP3CB/calcineurin A, calcineurin B and calmodulin. Interacts (via calcineurin B binding domain) with regulatory subunit PPP3R1/calcineurin B. Interacts (via calmodulin-binding domain) with calmodulin; the interaction depends on calmodulin binding to Ca(2+). Interacts with SLC12A1 (By similarity). Interacts with SORL1 (By similarity). Interacts with UNC119 (By similarity). Interacts with MAP3K14/NIK (via C-terminus and kinase domain) (By similarity). Interacts with TRAF3 (By similarity). Interacts with SPATA33 (via PQIIIT motif) (PubMed:34446558).

Also known as PP2BB_HUMAN, PPP3CB, CALNA2, CALNB, CNA2. Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-medi ...

EXTERNAL LINKS

PPP3CB

Serine/threonine-protein phosphatase 2B catalytic subunit beta isoform

PPP3CB

Molecular Synopsis