• Species Reactivity

  Human

• Specificity

  Detects human CXCR7/RDC‑1 in direct ELISAs. In flow cytometry, reacts specifically with five distinct human CXCR7 transfectants, but does not react with their respective parental lines or mouse CXCR7 transfectants. In flow cytometry, also reacts with monocytes expressing CXCR7, but does not react with MCF-7 cells which have been reported to have surface-expressing CXCR7 using clone 11G8. Due to the conflicting reports published, use of clone 358426 may result in an underestimation of CXCR7 expression on certain cell types.

• Source

  Monoclonal Mouse IgG    _2A Clone # 358426

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  NS0 mouse myeloma cell line transfected with human CXCR7/RDC‑1    
  Met1-Lys362 (Gly131Ser)    
  Accession # AAA62370

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  Fluorescein

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Flow Cytometry

  10 µL/10    ⁶ cells

  See below

• 
  

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

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: CXCR7/RDC-1

The G protein-coupled receptor, RDC1, belongs to a subgroup of chemokine receptors and has been designated CXCR7. CXCR7 can bind with high-affinity to CXCL12/SDF-1 and CXCL11/I-TAC. It is also a co-receptor for several HIV and SIV strains. In their N-termini and extracellular loops 1, 2, and 3, human and mouse CXCR7 share 84%, 100%, 96% and 86% amino acid sequence identity, respectively. Reports of mRNA levels and/or protein expression (as assessed using anti‑CXCR7, clone 9C4) (1, 2) indicate that CXCR7 occurs on a wide variety of tissues and cells including monocytes, B cells, T cells and mature dendritic cells. In contrast, based on ligand binding analysis and receptor level (as assessed using anti‑CXCR7, clone 11G8), surface expression of CXCR7 was reported to be restricted to tumor cells, activated endothelial cells, fetal liver cells, and few other cell types (3). The basis of these inconsistent observations is not known but may be attributed to cell context and the use of different antibodies that may recognize different epitopes.

• References:

1. Balabanian, K. et al. (2005) J. Biol. Chem. 280:35760.

2. Infantino, S. et al. (2006) J. Immunol. 176:2197.

3. Burns, J.M. et al. (2006) J. Exp. Med. 203:2201.

• Entrez Gene IDs:

  57007 (Human); 12778 (Mouse); 84348 (Rat)

• Alternate Names:

  ACKR3; chemokine (C-X-C motif) receptor 7; Chemokine orphan receptor 1CMKOR1C-X-C chemokine receptor type 7; CMKOR1; CXCR7; CXC-R7; CXCR-7; G protein-coupled receptor; GPR159; GPR159G-protein coupled receptor 159; RDC-1; RDC1G-protein coupled receptor RDC1 homolog