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PE Rat Anti-Mouse CD185 (CXCR5) 2G8 RUO

PE Rat Anti-Mouse CD185 (CXCR5) 

Clone  2G8   (RUO)

  • Brand BD Pharmingen™
  • Alternative Name Blr1; C-X-C chemokine receptor type 5; CXC-R5; CXCR-5; Gpcr6; MDR15
  • Concentration 0.2 mg/ml
  • Isotype Rat LOU, also known as Louvain, LOU/C, LOU/M IgG2a, κ
  • Reactivity Mouse (QC Testing) 
  • Application Flow cytometry (Routinely Tested) 
  • Immunogen Mouse CXCR5
  • Storage Buffer Aqueous buffered solution containing ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

The 2G8 monoclonal antibody specifically binds to the mouse C-X-C Chemokine Receptor type 5, CXCR5. CXCR5 is also known as CD185, BLR1, NLR and MDR15. CXCR5 is a seven-transmembrane, G-protein-coupled receptor that is specific for the CXC chemokine, CXCL13/BLC/BCA-1. The expression of CXCR5 has been detected in spleen, lymph nodes, tonsils, brain, bone marrow, T cells, B cells, cerebrum, cerebellum, hippcampus and pituitary. In mouse spleen, CXCR5 was strictly expressed by mature B cells and a small subset of T lymphocytes. CXCR5 plays a role in directing the migration of B and T cells to B cell follicles with the spleen and certain other lymphoid tissues. The immunogen used to generate 2G8 hybridoma was a recombinant protein containing N-terminal amino acids of mouse CXCR5 (GST-NmBLR1).

Format
  • Format PE
  • Excitation Source Blue 488 nm,Green 532 nm,Yellow/Green 561 nm
  • Excitation Max 496 nm
  • Emission Max 578 nm

R-phycoerythrin (PE) is an accessory photosynthetic pigment found in red algae. It exists in vitro as a 240-kDa protein with 23 phycoerythrobilin chromophores per molecule. This makes PE one of the brightest fluorochromes for flow cytometry applications, but its photobleaching properties make it unsuitable for fluorescence microscopy.

Other Formats →

Suggested Companion Products

PE Rat IgG2a, κ Isotype Control RUO
0.1 mg Cat No: 553930

FITC Rat Anti-Mouse CD45R/B220 RA3-6B2 RUO
0.5 mg Cat No: 553088

Purified Rat Anti-Mouse CD185 (CXCR5) 2G8 RUO
0.1 mg Cat No: 551961

Biotin Mouse Anti-Rat IgG2a RG7/1.30 RUO
0.5 mg Cat No: 553894

PE Streptavidin RUO
0.5 mg Cat No: 554061

FITC Streptavidin RUO
0.5 mg Cat No: 554060

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

PE Rat Anti-Mouse CD185 (CXCR5) 2G8 RUO
25 mg Cat No: 561988

Stain Buffer (BSA) RUO
500 mL Cat No: 554657

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS  Regulatory Document Website
Preparation and Storage

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 with R-PE under optimum conditions, and unconjugated antibody and free PE were removed.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. 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.
  4. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  5. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
  6. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.


The PE-conjugated 2G8 antibody is convenient for the immunofluorescent staining and flow cytometric analyses of mouse leukocytes and cell lines that express CXCR5 (see figure). Chemokine receptors are known to internalize during manipulation resulting in low frequency expression. Immunophenotyping studies of chemokine receptors need to be performed on freshly collected whole blood (<24 Hrs). Incubation with the antibody should be done in the dark. Cellular manipulation, such as Ficoll separation, freezing, or exposure to cold temperatures prior to staining should be minimized, as these treatments have been shown to cause a decrease in staining intensity and inconsistent results.

Investigators should note that alternative staining procedures may be necessary. A multiple-step staining procedure is recommended, in some instances, to amplify immunofluorescent signals for the flow cytometric analysis of mouse CXCR5 expression. Investigators may find the Purified Rat Anti-Mouse CD185 (CXCR5) antibody (Cat. No. 551961) to be useful in conjunction with appropriate secondary and tertiary reagents for detecting low frequency expression, such as with Biotin Mouse Anti-Rat IgG2a (Cat. No. 553894) and PE Streptavidin (Cat. No. 554061) or FITC Streptavidin (Cat. No. 554060).


  1. Barella L, Loetscher M, Tobler A, Baggiolini M, Moser B. Sequence variation of a novel heptahelical leucocyte receptor through alternative transcript formation. Biochem J. 1995; 309(3):773-779. (Biology: Flow cytometry). View reference

  2. Dobner T, Wolf I, Emrich T, Lipp M. Differentiation-specific expression of a novel G protein-coupled receptor from Burkitt's lymphoma. Eur J Immunol. 1992; 22(11):2795-2799. (Biology: Flow cytometry). View reference

  3. Forster R, Mattis AE, Kremmer E, Wolf E, Brem G, Lipp M. A putative chemokine receptor, BLR1, directs B cell migration to defined lymphoid organs and specific anatomic compartments of the spleen. Cell. 1996; 87(6):1037-1047. (Immunogen: Flow cytometry). View reference

  4. Gunn MD, Ngo VN, Ansel KM, Ekland EH, Cyster JG, Williams LT. A B-cell-homing chemokine made in lymphoid follicles activates Burkitt's lymphoma receptor-1. Nature. 1998; 391(6669):799-803. (Biology: Flow cytometry). View reference

  5. Kaiser E, Forster R, Wolf I, Ebensperger C, Kuehl WM, Lipp M. The G protein-coupled receptor BLR1 is involved in murine B cell differentiation and is also expressed in neuronal tissues. Eur J Immunol. 1993; 23(10):2532-2539. (Biology: Flow cytometry). View reference

  6. Kouba M, Vanetti M, Wang X, Schafer M, Hollt V. Cloning of a novel putative G-protein-coupled receptor (NLR) which is expressed in neuronal and lymphatic tissue. FEBS Lett. 1993; 321(2-3):173-178. (Biology: Flow cytometry). View reference

  7. Legler DF, Loetscher M, Roos RS, Clark-Lewis I, Baggiolini M, Moser B. B cell-attracting chemokine 1, a human CXC chemokine expressed in lymphoid tissues, selectively attracts B lymphocytes via BLR1/CXCR5. J Exp Med. 1998; 187(4):655-660. (Biology: Flow cytometry). View reference

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