CST, 29873SF, Integrin alpha4 (D2E1) Rabbit Monoclonal Antibody (BSA and Azide Free)

Monoclonal Antibody for studying Integrin Alpha 4. Validated for Western Blotting,Immunofluorescence (Immunocytochemistry),Flow Cytometry (Fixed/Permeabilized). Highly specific and rigorously validated in-house, Integrin alpha4 (D2E1) Rabbit Monoclonal Antibody (BSA and Azide Free) (CST #29873) is ready to ship. Product Usage Information This product is the carrier free version of product #8440. 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 # 8440 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 Integrin alpha4 (D2E1) Rabbit Monoclonal Antibody (BSA and Azide Free) recognizes endogenous levels of total integrin α4 protein. Species Reactivity: Human, Mouse, Rat Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser1027 of human integrin α4 protein. Background Integrins are α/β heterodimeric cell surface receptors that play a pivotal role in cell adhesion and migration, as well as in growth and survival (1,2). The integrin family contains at least 18 α and 8 β subunits that form 24 known integrins with distinct tissue distribution and overlapping ligand specificities (3). Integrins not only transmit signals to cells in response to the extracellular environment (outside-in signaling), but also sense intracellular cues to alter their interaction with the extracellular environment (inside-out signaling) (1,2). A pair of important α4 integrins, α4β1 and α4β7, interact with VCAM-1, fibronectin, and MAdCAM-1 at cell adhesions (3). Gene knockout and antibody blocking research reveal that α4 integrins play important roles in embryonic liver and heart development and in fetal lymphocyte homing (4-6). Phosphorylation at Ser988 within the cytoplasmic tail of integrin α4 blocks binding to paxillin and promotes leading edge migration (7,8). On SDS-PAGE, integrin α4 can migrate at several different apparent molecular sizes, a 150 kDa mature protein and a 140 kDa precursor protein (a 180 kDa protein also exists under mild non-reducing conditions) (9). Integrin α4 has a cleavage site at Arg558, which results in a small portion of the protein as either an 80 kDa N-terminal or 70 kDa C-terminal fragment (10). Alternate Names 269C wild type; alpha 4 subunit of VLA-4 receptor; antigen CD49D, alpha-4 subunit of VLA-4 receptor; CD49 antigen-like family member D; CD49D; IA4; integrin alpha 4; Integrin alpha-4; integrin alpha-4 subunit; Integrin alpha-IV; integrin subunit alpha 4; integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor); ITA4; ITGA4; MGC90518; very late activation protein 4 receptor, alpha 4 subunit; VLA-4 subunit alpha Specification REACTIVITY: H M R SENSITIVITY: Endogenous MW (kDa): 70, 140, 150, Source/Isotype: Rabbit IgG