CST, 2720T, TORC3/CRTC3 (C35G4) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying Torc3. Validated for Western Blotting. Available in 2 sizes. Highly specific and rigorously validated in-house, TORC3/CRTC3 (C35G4) Rabbit Monoclonal Antibody (CST #2720) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting Specificity / Sensitivity TORC3/CRTC3 (C35G4) Rabbit Monoclonal Antibody recognizes endogenous levels of total TORC3 (CRTC3) protein. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification TORC3/CRTC3 (C35G4) Rabbit mAb is produced by immunizing animals with a synthetic peptide corresponding to the sequence of human TORC3 (CRTC3) protein. Background Glucose homeostasis is regulated by hormones and cellular energy status. Elevations of blood glucose during feeding stimulate insulin release from pancreatic β-cells through a glucose sensing pathway. Feeding also stimulates release of gut hormones such as glucagon-like peptide-1 (GLP-1), which further induces insulin release, inhibits glucagon release and promotes β-cell viability. CREB-dependent transcription likely plays a role in both glucose sensing and GLP-1 signaling (1). The protein CRTC2 (CREB-regulated transcription coactivator 2)/TORC2 (transducer of regulated CREB activity 2) functions as a CREB co-activator (2,3) and is implicated in mediating the effects of these two pathways (4). In quiescent cells, CRTC2/TORC2 is phosphorylated at Ser171 and becomes sequestered in the cytoplasm via an interaction with 14-3-3 proteins. Glucose and gut hormones lead to the dephosphorylation of CRTC2/TORC2 and its dissociation from 14-3-3 proteins. Dephosphorylated CRTC2/TORC2 enters the nucleus to promote CREB-dependent transcription. CRTC2/TORC2 plays a key role in the regulation of hepatic gluconeogenic gene transcription in response to hormonal and energy signals during fasting (5). CRTC2/TORC2-related proteins CRTC1/TORC1 and CRTC3/TORC3 also act as CREB co-activators (2,3). CRTC1/TORC1, CRTC2/TORC2 and CRTC3/TORC3 associate with the HTLV Tax protein to promote Tax-dependent transcription of HTLV-1 long terminal repeats (6,7). CRTC1/TORC1 is highly phosphorylated at Ser151 in mouse hypothalamic cells under basal conditions (8). When these cells are exposed to cAMP or a calcium activator, CRTC1/TORC1 is dephosphorylated and translocates into the nucleus (8). CRTC1/TORC1 is essential for energy balance and fertility (8). Alternate Names CREB regulated transcription coactivator 3; CREB-regulated transcription coactivator 3; CRTC3; FLJ21868; TORC-3; TORC3; Transducer of CREB protein 3; transducer of regulated cAMP response element-binding protein (CREB) 3; Transducer of regulated cAMP response element-binding protein 3; transducer of regulated CREB protein 3 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 76-78 Source/Isotype: Rabbit IgG