CST, 13392S, PSMC5/TRIP1 Antibody

Polyclonal Antibody for studying PSMC5. Validated for Western Blotting. Highly specific and rigorously validated in-house, PSMC5/TRIP1 Antibody (CST #13392) 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 and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting Specificity / Sensitivity PSMC5/TRIP1 Antibody recognizes endogenous levels of total PSMC5 (TRIP1) protein. This antibody does not cross-react with other AAA-ATPase subunits of the 19S proteasome regulatory particle. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human PSMC5 (TRIP1) protein. Antibodies are purified by protein A and peptide affinity chromatography. Background The 26S proteasome is a highly abundant proteolytic complex involved in the degradation of ubiquitinated substrate proteins. It consists largely of two sub-complexes, the 20S catalytic core particle (CP) and the 19S/PA700 regulatory particle (RP) that can cap either end of the CP. The CP consists of two stacked heteroheptameric β-rings (β ) that contain three catalytic β-subunits and are flanked on either side by two heteroheptameric α-rings (α ). The RP includes a base and a lid, each having multiple subunits. The base, in part, is composed of a heterohexameric ring of ATPase subunits belonging to the AAA (ATPases Associated with diverse cellular Activities) family. The ATPase subunits function to unfold the substrate and open the gate formed by the α-subunits, thus exposing the unfolded substrate to the catalytic β-subunits. The lid consists of ubiquitin receptors and DUBs that function in recruitment of ubiquitinated substrates and modification of ubiquitin chain topology (1,2). Other modulators of proteasome activity, such as PA28/11S REG, can also bind to the end of the 20S CP and activate it (1,2). The base of the eukaryotic proteasome 19S/PA700 RP contains six AAA-ATPase subunits (PSMC1-PSMC6) that bind directly to the 20S CP α-ring. These 19S RP ATPases are thought to assemble into a heterohexameric, pore-like structure that forms part of the substrate translocation channel. Energy derived from ATP hydrolysis by the AAA-ATPases is utilized for substrate unfolding and translocation, which is required for degradation of ubiquitinated folded proteins within the central chamber of the 20S CP formed by β-subunits (3-5). Thyroid hormone receptor-interacting protein 1 (PSMC5, TRIP1) is a 19S AAA-ATPase subunit involved in the negative regulation of gene transcription. Recruitment of PSMC5 to liganded VDR (6) and RARγ2 (7) facilitates their degradation via the proteasome. Alternate Names 26S protease regulatory subunit 8; 26S proteasome AAA-ATPase subunit RPT6; 26S proteasome regulatory subunit 8; MSUG1 protein; p45; p45/SUG; proteasome (prosome, macropain) 26S subunit, ATPase, 5; proteasome 26S ATPase subunit 5; Proteasome 26S subunit ATPase 5; proteasome 26S subunit, ATPase 5; Proteasome subunit p45; PRS8; PSMC5; RPT6; S8; SUG-1; SUG1; Tat-binding protein homolog 10; TBP10; testicular tissue protein Li 149; Thyroid hormone receptor-interacting protein 1; thyroid receptor interactor 1; TRIP1 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 45 SOURCE: Rabbit