Database for Annotation, Visualization and Integrated Discovery 2.1
National Institute of Allergy and Infectious Disease
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protein phosphatase 1 regulatory subunit 12A(PPP1R12A) protein phosphatase 1 regulatory subunit 12A(PPP1R12A) Related Genes Homo sapiens
CYTOBAND 12q15-q21,
GENERIF_SUMMARY Integrin-linked kinase phosphorylates the myosin phosphatase target subunit at the inhibitory site in platelet cytoskeleton., Proper expression of MYPT1 or variant 2 is critical for RLC phosphorylation and actin assembly, thus maintaining normal cellular functions by simultaneously controlling cytoskeletal architecture and actomyosin activation., Stable transfection of HEK 293 cells with GFP-MYPT1 was obtained. MYPT1 and its N-terminal mutants bound to retinoblastoma protein (Rb), raising the possibility that Rb is implicated in the effects caused by overexpression of MYPT1., the leucine-zipper motif of PKG binds to that of MYPT1 to form a heterodimer; when the leucine-zipper motif of MYPT1 is absent, the PKG leucine-zipper motif binds to the coiled coil region and upstream segments of MYPT1 via formation of a heterotetramer, These data suggests different phosphorylation and regulation of MYPT1 activity by NUAK2., both eEF1A and MYPT1 have roles in EGCG signaling for cancer prevention through 67LR, These results identify a previously unrecognized role for MYPT1 in regulating mitosis by antagonizing PLK1., MYPT1 may regulate the phosphorylation level of pRb, thereby it may be involved in the control of cell cycle progression and in the mediation of chemoresistance of leukemic cells., Apolipoprotein(a), through its strong lysine-binding site in KIV(10'), mediates increased endothelial cell contraction and permeability via a Rho/Rho kinase/MYPT1-dependent pathway., Results show that expression of MYPT1 enhances HIF-CAD activity in a manner consistent with competition for FIH and that this property extends to other ARD proteins., MYPT1 phosphorylation at Thr-696 and Thr-853 causes an autoinhibition of MLCP that accounts for Ca(2+) sensitization of smooth muscle force, Solution structure of the inhibitory phosphorylation domain of myosin phosphatase targeting subunit 1, The ability of myosin phosphatase to modulate myosin light chain might be regulated by the degradation of its targeting subunit MYPT1 through the SIAH2-ubiquitin-proteasomal pathway., cAMP/PKA regulates the endothelial barrier via inhibition of the contractile machinery, mainly by the activation of MLCP via inhibition of CPI-17 and RhoA/Rock., Findings define a new conserved pathway in which sexual development and pregnancy mediate smooth and striated muscle adaptations through SMTNL1 and MYPT1., hHS-M(21) is a heart-specific effector of ROCK and plays a regulatory role in the MYPT1 phosphorylation at Thr-696 by ROCK, Myosin phosphatase-targeting subunit 1 controls chromatid segregation., MYPT1 variant 2 shows decreased binding affinity compared to MYPT1 long for radixin (novel MLCP substrate and a member of ERM family proteins)., the defective protein level of MYPT1 in the diabetes mellitus (DM) group can partially explain the poor patency of saphenous vein graft harvested from patients with DM., Phosphorylation of MYPT1 (Thr853) changes dynamically with each contraction of the myometrium regulated by Rho-kinase., Site-specific phosphorylation of protein phosphatase 1 regulatory subunit 12A stimulated or suppressed by insulin., It found deoxyribonucleic acid (DNA) damage-induced LATS1 activation caused PLK1 suppression via the phosphorylation of MYPT1 S445., These findings provide evidence for the involvement of a particular PP1 complex, PPP1R12A/PP1cdelta, in insulin signaling., Calcineurin may modulate the phosphorylation level of MLC20 by influencing the phosphorylation state of MYPT1 to regulate endothelial barrier function., Mypt1 colocalizes outside the nucleus with Nkx2.5 in a manner dependent on Wnt signaling and Rho-associated protein kinase., in apoptotic cells, the myosin-binding domain of myosin phosphatase targeting subunit 1 is cleaved by caspase-3, and the cleaved MYPT1 is strongly phosphorylated at Thr-696 and Thr-853, phosphorylation of which is known to inhibit myosin II binding, results suggested that during atherosclerosis progression oxidative stress mediates the downregulation of MYPT1, which may inhibit smooth muscle cell migration and contribute to the aberrant contractility, distinct roles of two inhibitory phosphorylation sites of MYPT1, Expression of NUAK1 is controlled by cyclin-dependent kinase, PLK1, and the SCFbetaTrCP (Skp, Cullin and F-boxbetaTrCP) E3 ubiquitin ligase complex., These results indicate that PPP1R12A indeed plays a role in skeletal muscle insulin signaling, the relative expression of LZ+/LZ- MYPT1 isoforms, in part, defines the vascular response to NO and NO based vasodilators, and therefore, plays a role in the regulation of vascular tone in both health and disease,
SP_COMMENT function:Regulates myosin phosphatase activity., PTM:Phosphorylated by CIT (Rho-associated kinase) (By similarity). Phosphorylated cooperatively by ROCK1 and CDC42BP on Thr-696. Phosphorylated on upon DNA damage, probably by ATM or ATR., sequence caution:Contaminating sequence. Potential poly-A sequence., similarity:Contains 6 ANK repeats., subcellular location:Along actomyosin filaments and stress fibers., subunit:PP1 comprises a catalytic subunit, PPP1CA, PPP1CB or PPP1CC, and one or several targeting or regulatory subunits. PPP1R12A mediates binding to myosin. Interacts with ARHA and CIT (By similarity). Binds PPP1R12B, ROCK1 and IL16.,