Calcium Flux Assay

HTS036RTA - Ready-to-Assay™ CCR9 Chemokine Receptor Frozen Cells

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HTS036RTA
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  • Product Description

    The CCR9 receptor is a GPCR expressed selectively in the thymus, lymph node, spleen, and the small bowel (SB). CCR9 binds to Thymus-expressed chemokine ligand (TECK / CCL25) (Zaballos et al. 1999, Yu et al., 2000, Carramolino et al., 2001), and is involved in directing the movement of mature T cells in the thymus. CCR9 also plays an important role in the pathogenesis of SB Crohn’s disease (Papadakis et al, 2001). The CCR9 selective expression in the small bowel but not the colon indicates the role of CCR9 in the specialized immune response in the SB. It was also shown that CCR9-mediated antiapoptosis could help in the study of cell survival mechanism and T cell malfunctioning.  Cloned human CCR9-expressing cell line is made in the Chem-1 host, which supports high levels of recombinant CCR9 expression on the cell surface and contains high levels of the promiscuous G protein Gα15 to couple the receptor to the calcium signaling pathway. Thus, the cell line is an ideal tool for screening for agonists, antagonists, and modulators at CCR9.

    Additional Resource: HTS036RTA112114_Datasheet

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    Item Unit of Measure: PK
    Contents: Pack contains 2 vials of mycoplasma-free cells, 1 ml per vial. Fifty (50) mL of Media Component.
    Storage: Vials are to be stored in liquid N2.
    Applications: Calcium Flux Assay
    Entrez Gene Number: NM_031200
    Protein Targets: CCR9
    Target Sub-family: Chemokine
    Host Cell: Chem-1, an adherent rat hematopoietic cell line expressing endogenous Gα15 protein.
    Exogenous Gene Expression: CCR9 cDNA (Accession Number: NM_031200) expressed from a proprietary pHS plasmid
    GMO: This product contains genetically modified organisms.
    Reference 1: 1. Carramolino L, et al. (2001a) CCR9-positive lymphocytes and thymus-expressed chemokine distinguish small bowel from colonic Crohn's disease. Gastroenterology. 121(2):246-54.
    Reference 2: 2. Carramolino L, et al. (2001b) Expression of CCR9 beta-chemokine receptor is modulated in thymocyte differentiation and is selectively maintained in CD8(+) T cells from secondary lymphoid organs. Blood. 15;97(4):850-7.
    Reference 3: 3. Kunkel EJ, et al. (2000) Lymphocyte CC chemokine receptor 9 and epithelial thymus-expressed chemokine (TECK) expression distinguish the small intestinal immune compartment: Epithelial expression of tissue-specific chemokines as an organizing princ
    Reference 4: 4. Papadakis KA, et al. (2000) The role of thymus-expressed chemokine and its receptor CCR9 on lymphocytes in the regional specialization of the mucosal immune system. J Immunol. 165(9):5069-76.
    Reference 5: 5. Papadakis KA, et al. (2001) CCR9-positive lymphocytes and thymus-expressed chemokine distinguish small bowel from colonic Crohn's disease. Gastroenterology. 121(2):246-54.
    Reference 6: 6. Yu CR, et al. (2000) CCR9A and CCR9B: two receptors for the chemokine CCL25/TECK/Ck beta-15 that differ in their sensitivities to ligand. J Immunol. 1;164(3):1293-305.
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