• Species Reactivity

  Human

• Specificity

  Stains human CXCR5 transfectants but not the parental cell lines in flow cytometry. Does not cross-react with human CXCR2, CXCR3, or CXCR4 transfectants.

• Source

  Monoclonal Mouse IgG    _2B Clone # 51505

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  NS0 mouse myeloma cell line transfected with human CXCR5    
  Met1-Phe372    
  Accession # P32302

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Endotoxin Level

  <0.10 EU per 1 μg of the antibody by the LAL method.  

• Label

  Unconjugated

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25 µg/10    ⁶ cells

  Human peripheral blood CD19    ⁺ B cells

• 
  

• Immunohistochemistry

  8-25 µg/mL

  See below

• 
  

• CyTOF-reported

  Ferrell, P.B., Jr.     et al. (2016) PLoS ONE     11: e0153207. Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

• 
  

• Immunocytochemistry

  8-25 µg/mL

  See below

• 
  

• Neutralization

  Measured by its ability to neutralize CXCL13/BLC/BCA‑1-induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CXCR5. The Neutralization Dose (ND    ₅₀) is typically 0.25-1.5 µg/mL in the presence of 0.05 µg/mL Recombinant Human CXCL13/BLC/BCA‑1.

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CXCR5

CXCR5, also known as BLR-1, is a 7 transmembrane domain protein expressed on B cells. CXCR5 mediates B cell migration following binding of CXCL13.

• Entrez Gene IDs:

  643 (Human); 12145 (Mouse); 29363 (Rat)

• Alternate Names:

  BLR1; BLR1MDR-15; Burkitt lymphoma receptor 1; Burkitt lymphoma receptor 1, GTP binding protein (chemokine (C-X-C motif)receptor 5); Burkitt lymphoma receptor 1, GTP-binding protein; CD185 antigen; CD185; chemokine (C-X-C motif) receptor 5; C-X-C chemokine receptor type 5; CXCR5; CXC-R5; MDR15CXCR-5; MGC117347; Monocyte-derived receptor 15