{"product_id":"tca-rabbit-polyclonal-antibody-50ul","title":"TCA Rabbit Polyclonal Antibody, 50ul","description":"\u003cp\u003eT cell receptors recognize foreign antigens which have been processed as small peptides and bound to major histocompatibility complex (MHC) molecules at the surface of antigen presenting cells (APC). Each T cell receptor is a dimer consisting of one alpha and one beta chain or one delta and one gamma chain. In a single cell| the T cell receptor loci are rearranged and expressed in the order delta| gamma| beta| and alpha. If both delta and gamma rearrangements produce functional chains| the cell expresses delta and gamma. If not| the cell proceeds to rearrange the beta and alpha loci. This region represents the germline organization of the T cell receptor alpha and delta loci. Both the alpha and delta loci include V (variable)| J (joining)| and C (constant) segments and the delta locus also includes diversity (D) segments. The delta locus is situated within the alpha locus| between the alpha V and J segments. During T cell development| the delta chain is synthesized by a recombination event at the DNA level joining a D segment with a J segment; a V segment is then joined to the D-J gene. The alpha chain is synthesized by recombination joining a single V segment with a J segment. For both chains| the C segment is later joined by splicing at the RNA level. Recombination of many different V segments with several J segments provides a wide range of antigen recognition. Additional diversity is attained by junctional diversity| resulting from the random additional of nucleotides by terminal deoxynucleotidyltransferase. Five variable segments can be used in either alpha or delta chains and are described by TRAV\/DV symbols. Several V and J segments of the alpha locus are known to be incapable of encoding a protein and are considered pseudogenes. \u003c\/p\u003e","brand":"BT LAB","offers":[{"title":"Default Title","offer_id":56515570270581,"sku":"BT-AP12990-50ul","price":162.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/2671\/1640\/files\/Antibody_main_1.jpg?v=1766393459","url":"https:\/\/www.labcart.com\/de\/products\/tca-rabbit-polyclonal-antibody-50ul","provider":"LabCart Life Science","version":"1.0","type":"link"}