Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human, Mouse, Feline

Applications

Validated:

CyTOF-ready, Flow Cytometry, Neutralization

Cited:

Binding Assay, Blocking, Flow Cytometry, Immunocytochemistry, Immunohistochemistry, Immunohistochemistry-Paraffin, Neutralization, Surface Plasmon Resonance, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2B Clone # 44717

View all CXCR4 Antibodies »

Product Specifications

Immunogen

3T3 cells transfected with human CXCR4

Specificity

Reacts specifically with human and non-human cells expressing human CXCR4 (fusin) as detected by flow cytometry. It will also react with cells expressing feline CXCR4 but not rat CXCR4. This antibody does not cross-react with other chemokine receptors.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Endotoxin Level

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

Scientific Data Images for Human CXCR4 Antibody

Chemotaxis Induced by CXCL12/SDF‑1 alpha and Neutralization by Human CXCR4 Antibody.

Chemotaxis Induced by CXCL12/SDF‑1 alpha and Neutralization by Human CXCR4 Antibody.

Recombinant Human/Feline/Rhesus Macaque CXCL12/SDF-1a (Catalog # 350-NS) chemoattracts the BaF3 mouse pro-B cell line transfected with human CXCR4 in a dose-dependent manner (orange line). The amount of cells that migrated through to the lower chemotaxis chamber was measured by Resazurin (Catalog # AR002). Chemotaxis elicited by Recombinant Human/Feline/Rhesus Macaque CXCL12/SDF-1a (1 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human CXCR4 Monoclonal Antibody (Catalog # MAB173). The ND50 is typically 1-5 µg/mL.
Detection of Canine CXCR4 by Immunocytochemistry/Immunofluorescence

Detection of Canine CXCR4 by Immunocytochemistry/Immunofluorescence

Ectopic expression of CXCR7 and CXCR4 on MDCK cells.(A) MDCK were stably transfected with empty vector (Mock), with CXCR7, CXCR4, a vector coding for a CXCR7 lacking the cytoplasmic C-terminus ( deltaCXCR7), and a vector coding for a chimeric CXCR7 containing the DRYLAIV motive of CXCR4. Receptor expression was determined by FACS analysis using saturating antibody concentrations (see Methods). (B) Confocal immunofluorescence analysis of unfixed MDCK cells expressing CXCR7 (upper panels) or CXCR4 (lower panels). Cells also expressed N-ter-Lck mCherry as membrane marker (red fluorescence). Left panels: confocal images of planes cut through intracellular regions of MDCK monolayers. Right panels: x-z planes reconstructed from confocal x-y stacks. For receptor (green) detection anti-CXCR7 (11G8 R&D) or anti CXCR4 (MAB173 R&D) were used. Receptor-bound primary antibodies were revealed with goat anti mouse IgG conjugated with Alexa488 (green fluorescence). Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/20161793), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human CXCR4 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: Jurkat human acute T cell leukemia cell line

Neutralization

Measured by its ability to neutralize CXCL12/SDF‑1 alpha-induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CXCR4. The Neutralization Dose (ND50) is typically 1-5 µg/mL in the presence of 1 ng/mL Recombinant Human/Feline/Rhesus Macaque CXCL12/SDF‑1 alpha.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
Size / Price
Qty

Formulation

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

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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: CXCR4

CXCR4, also known as CD184, is a G-protein-linked seven transmembrane spanning receptor that binds stromal cell-derived factor-1 (SDF-1). CXCR4 acts as a co-factor for T-cell tropic HIV-1 and -2 viral entry into cells. While primarily a membrane protein, CXCR4 undergoes trafficking and internalization in response to stimulation with phorbol esters and ligand (1). Cytoplasmic and nuclear localization of CXCR4 has been observed in colorectal and renal carcinomas (2,3) and it has been used as the basis of prognosis and metastatic state (3,4,5).

References

  1. Orsini, M.J. et al. (1999) J. Biol. Chem. 274:31076.
  2. Zagzag, D. et al. (2005) Cancer Res. 65:6178.
  3. Speetjens, F.M. et al. (2009) Cancer Microenvironment 2:1.
  4. Wang, L. et al. (2009) Oncology Reports 22:1333.
  5. Amara, S. et al. (2015) Cancer Biomark. 15:869.

Long Name

C-X-C Motif Chemokine Receptor 4

Alternate Names

CD184, D2S201E, FB22, Fusin, HM89, HSY3RR, LAP-3, LAP3, LCR1, LESTR, NPY3R, NPYRL, NPYY3R, WHIMS

Entrez Gene IDs

7852 (Human); 12767 (Mouse); 60628 (Rat); 483900 (Canine); 493676 (Feline)

Gene Symbol

CXCR4

Additional CXCR4 Products

Product Documents for Human CXCR4 Antibody

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human CXCR4 Antibody

For research use only

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