{"product_id":"cst-23140sf","title":"CST,  23140SF, CD4 (MSVA-004R) Rabbit Monoclonal Antibody (BSA and Azide Free)","description":"Monoclonal Antibody for studying CD4. Validated for Western Blotting,Immunohistochemistry (Paraffin). Highly specific and rigorously validated in-house, CD4 (MSVA-004R) Rabbit Monoclonal Antibody (BSA and Azide Free) (CST #23140) is ready to ship.\n\n\u003cb\u003eFormulation\u003c\/b\u003e\nSupplied in 1X PBS, BSA and Azide Free. For standard formulation of this product see product #99785\n\u003cb\u003eStorage\u003c\/b\u003e\nStore 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.\n\u003cb\u003eSpecificity \/ Sensitivity\u003c\/b\u003e\nCD4 (MSVA-004R) Rabbit Monoclonal Antibody (BSA and Azide Free) recognizes endogenous levels of CD4 protein.\nSpecies Reactivity: Human\n\u003cb\u003eBackground\u003c\/b\u003e\nCluster of Differentiation 4 (CD4) is a glycoprotein composed of an amino-terminal extracellular domain (four domains: D1-D4 with Ig-like structures), a transmembrane part, and a short cytoplasmic tail. CD4 is expressed on the surface of T helper cells, regulatory T cells, monocytes, macrophages, and dendritic cells, and plays an important role in the development and activation of T cells. On T cells, CD4 is the co-receptor for the T cell receptor (TCR), and these two distinct structures recognize the Antigen-Major Histocompatibility Complex (MHC). Specifically, the D1 domain of CD4 interacts with the β2-domain of the MHC class II molecule. CD4 ensures specificity of the TCR-antigen interaction, prolongs the contact between the T cell and the antigen presenting cell, and recruits the tyrosine kinase Lck, which is essential for T cell activation (1).\n\u003cb\u003eAlternate Names\u003c\/b\u003e\nCD4; CD4 antigen (p55); CD4 molecule; CD4 receptor; CD4mut; T-cell surface antigen T4\/Leu-3; T-cell surface glycoprotein CD4\n\n\u003cb\u003eSpecification\u003c\/b\u003e\n\nREACTIVITY: H\nSENSITIVITY: Endogenous\nMW (kDa): 55\nSource\/Isotype: Rabbit IgG","brand":"CST","offers":[{"title":"Default Title","offer_id":46797664190633,"sku":"23140SF","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/cst-23140sf","provider":"Iright","version":"1.0","type":"link"}