Description
The 9B1 monoclonal antibody specifically binds to CD199 which is also known as Chemokine (C-C motif) receptor 9 (CCR9) or C-C chemokine receptor type 9 (C-C CKR-9). CD199 is a ~42 kDa seven-transmembrane protein and member of the G protein-coupled receptor 1 family. CD199 binds to CCL25, which is likewise known as thymus-expressed chemokine (TECK) or small inducible chemokine 25 (Scya25). CCL25 is selectively and constitutively expressed in the thymic cortex and small intestinal epithelium. CD199 (CCR9) is highly expressed on CD4+CD8+ double-positive thymocytes and mature naïve CD8+ T cells, but not naïve CD4+ T cells, in the peripheral lymphoid organs. CD199 (CCR9) is also expressed on small intestinal B cells, and on subsets of memory CD4+ T cells and CD8+ T cells, and dendritic cells. The CCR9/CCL25 pathway plays important roles in T cell development and gut-associated immune functions. It is especially involved in the recruitment of CD8αα+ intraepithelial lymphocytes (IELs) and the homing of other lymphocytes to the gut. Dysregulation of this pathway is associated with inflammatory responses, such as inflammatory bowel disease (IBD) and celiac disease.
BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions and unreacted dye was removed.
1. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
2. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
3. An isotype control should be used at the same concentration as the antibody of interest.
4. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
5. Alexa Fluor® 488 fluorochrome emission is collected at the same instrument settings as for fluorescein isothiocyanate (FITC).
6. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
7. This product is provided under an intellectual property license between Life Technologies Corporation and BD Businesses. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The buyer cannot sell or otherwise transfer (a) this product (b) its components or (c) materials made using this product or its components to a third party or otherwise use this product or its components or materials made using this product or its components for Commercial Purposes. Commercial Purposes means any activity by a party for consideration and may include, but is not limited to: (1) use of the product or its components in manufacturing; (2) use of the product or its components to provide a service, information, or data; (3) use of the product or its components for therapeutic, diagnostic or prophylactic purposes; or (4) resale of the product or its components, whether or not such product or its components are resold for use in research. For information on purchasing a license to this product for any other use, contact Life Technologies Corporation, Cell Analysis Business Unit Business Development, 29851 Willow Creek Road, Eugene, OR 97402, USA, Tel: (541) 465-8300. Fax: (541) 335-0504.
8. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
9. Alexa Fluor™ is a trademark of Life Technologies Corporation.
