CST, 48494SF, HEXIM1 (D5Y5K) Rabbit Monoclonal Antibody (BSA and Azide Free)

Monoclonal Antibody for studying HEXIM1. Validated for Western Blotting,Immunofluorescence (Immunocytochemistry),Flow Cytometry (Fixed/Permeabilized). Highly specific and rigorously validated in-house, HEXIM1 (D5Y5K) Rabbit Monoclonal Antibody (BSA and Azide Free) (CST #48494) is ready to ship. Product Usage Information This product is the carrier free version of product #12604. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol. This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us . Optimal dilutions/concentrations should be determined by the end user. BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity. Formulation Supplied in 1X PBS (10 mM Na 2 HPO 4 , 3 mM KCl, 2 mM KH 2 PO 4 , and 140 mM NaCl (pH 7.8)). BSA and Azide Free. For standard formulation of this product see product # 12604 Storage Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance. Specificity / Sensitivity HEXIM1 (D5Y5K) Rabbit Monoclonal Antibody (BSA and Azide Free) recognizes endogenous levels of total HEXIM1 protein. Species Reactivity: Human, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gly63 of human HEXIM1 protein. Background Hexamethylene bis-acetamide-inducible protein 1 (HEXIM1) was originally identified in vascular smooth muscle cells as a protein that is upregulated upon treatment with the differentiating agent hexamethylene bisacetamide (1). HEXIM1 binds 7SK RNA, a highly abundant non-coding RNA, and together they act as a potent inhibitor of positive transcription elongation factor b (P-TEFb) (2,3). P-TEFb phosphorylates the C-terminal domain of the largest subunit of RNA polymerase II and is an important regulator of transcription elongation (4-8). 7SK RNA-bound HEXIM1 interacts with the cyclin T1 subunit of P-TEFb, sequestering P-TEFb in an inactive form leading to transcription inhibition (2,3). The regulation of the relative ratio of inactive to active P-TEFb in the cell by HEXIM1/7SK RNA is thought to play a critical role in regulation of a wide range of cellular gene expression programs such as estrogen and glucocorticoid receptor regulated genes (9-12). Alternate Names Cardiac lineage protein 1; CLP1; EDG1; Estrogen down-regulated gene 1 protein; FLJ13562; hexamethylene bis-acetamide inducible 1; Hexamethylene bis-acetamide-inducible protein 1; hexamethylene bisacetamide inducible 1; hexamethylene bisacetamide-inducible protein; hexamethylene-bis-acetamide-inducible transcript 1; hexamthylene bis-acetamide inducible 1; HEXI1; HEXIM P-TEFb complex subunit 1; HEXIM1; HIS1; HMBA-inducible; MAQ1; menage a quatre 1; Menage a quatre protein 1; Protein HEXIM1 Specification REACTIVITY: H Mk SENSITIVITY: Endogenous MW (kDa): 60 Source/Isotype: Rabbit IgG