{"product_id":"cst-52200s","title":"CST,  52200S, HHLA2\/B7-H7 (E1U6X) Rabbit Monoclonal Antibody","description":"Monoclonal Antibody for studying B7-H7. Validated for Western Blotting. Available in 2 sizes. Highly specific and rigorously validated in-house, HHLA2\/B7-H7 (E1U6X) Rabbit Monoclonal Antibody (CST #52200) is ready to ship.\n\n\u003cb\u003eProduct Usage Information\u003c\/b\u003e\nWestern Blotting: 1:1000\n\u003cb\u003eStorage\u003c\/b\u003e\nSupplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg\/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody.\n\u003cb\u003eProtocol\u003c\/b\u003e\nAvailable protocols: Western Blotting\n\u003cb\u003eSpecificity \/ Sensitivity\u003c\/b\u003e\nHHLA2\/B7-H7 (E1U6X) Rabbit mAb recognizes endogenous levels of total HHLA2\/B7-H7 protein.\nSpecies Reactivity: Human\n\u003cb\u003eSource \/ Purification\u003c\/b\u003e\nMonoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Asn101 of human HHLA2\/B7-H7 protein.\n\u003cb\u003eBackground\u003c\/b\u003e\nHERV-H LTR-associating protein 2 (HHLA2, with alternative names of B7-H5 and B7-H7) is a member of the B7 immunoglobulin superfamily (1). HHLA2Â protein is constitutively expressed on the surface of human monocytes and is induced on B cells after stimulation with LPS and IFN-Î³ (1,2). Through interaction with TMIGD2, which is constitutively expressed on all naÃ¯ve T cells and the majority of natural killer cells, but not on T regulatory cells or B cells, HHLA2 co-stimulates T cells in the context of TCR-mediated activation, enhancing T cell proliferation and cytokine production via an AKT-dependent signaling cascade (2). Contrary to this, HHLA2 has also been shown to inhibit T cell proliferation and cytokine production, suggesting a secondary receptor for HHLA2 that is expressed on activated T cells with co-inhibitory functions (3). Moreover, HHLA2 has been shown to be highly expressed in various types of cancer, and is associated with a poor prognosis (4-10). Further understanding the immunologic functions of the HHLA2 pathway will guide the selection of agents used for cancer immunotherapy, autoimmune disorders, infection, and transplant rejection.\n\u003cb\u003eAlternate Names\u003c\/b\u003e\nB7-H5; B7-H7; B7H7; B7y; HERV-H LTR-associating 2; HERV-H LTR-associating protein 2; HHLA2; Human endogenous retrovirus-H long terminal repeat-associating protein 2\n\n\u003cb\u003eSpecification\u003c\/b\u003e\n\nREACTIVITY: H\nSENSITIVITY: Endogenous\nMW (kDa): 70-80\nSource\/Isotype: Rabbit IgG","brand":"CST","offers":[{"title":"Default Title","offer_id":46799789850793,"sku":"52200S","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/cst-52200s","provider":"Iright","version":"1.0","type":"link"}