Biolegend, 306540, Ultra-LEAF™ Purified anti-human CD184 (CXCR4) Antibody, 1mg

CD184, also known as fusin or CXCR4, is a 45 kD seven transmembrane G-protein-linked CXC chemokine receptor. CD184 is widely expressed on blood and tissue cells, including B and T cells, monocytes, macrophages, dendritic cells, granulocytes, megakaryocytes/platelets, lymphoid, myeloid precursor cells, endothelial cells, epithelial cells, astrocytes, and neurons, among other tissue cells. CD184 is the receptor for CXC chemokine SDF-1, mediates blood cell migration, and is involved in B lymphopoiesis and myelopoiesis, cardiogenesis, blood vessel formation, and cerebellar development. CXCR4 is also a coreceptor of X4 HIV-1 and an alternative receptor for some isolates of HIV-2.
1mg
Verified Reactivity: Human, Cynomolgus, Rhesus
Reported Reactivity: African Green, Baboon, Chimpanzee, Sooty Mangabey
Antibody Type: Monoclonal
Host Species: Mouse
Immunogen: CP-MAC-infected Sup-T1 cells
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: FC - Quality tested ICC, CyTOF® - Verified IHC, Block - Reported in the literature, not verified in house
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Additional reported applications (for the relevant formats) include: immunohistochemical staining of paraffin-embedded tissue sections11, immunocytochemistry3, immunofluorescence microscopy2,6, and blocking of CD4-independent infection by HIV-2 and CD4-dependent infection by some T cell-tropic isolates of HIV-14,5. Clone 12G5 may not be suitable for Western blotting.10 The Ultra-LEAF™ purified antibody (Endotoxin <0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. Nos. 306539 & 306540).
Application References(PubMed link indicates BioLegend citation): McKnight A, et al. 1997. J. Virol. 71:1692. Endres MJ, et al. 1996. Cell 87:745. (Immunogen, IF) Volin MV, et al. 1998. Biochem. Biophys. Res. Commun. 242:46. (ICC) Berndt C, et al. 1998. P. Natl. Acad. Sci. USA 95:12556. (Block) Ullrich CK, et al. 2000. Blood 96:1438. (Block) Murga M, et al. 2005. Blood 105:1992. (IF) Thompson BD. 2007. J. Biol. Chem. 282:9547. (FC) PubMed Isnardi I, et al. 2010. Blood 115:5026. PubMed Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC) Fischer T, et al. 2008. PLoS One 3:e4069. Schmid BC, et al. 2004. Breast Cancer Res. Treat. 84:247. (IHC)
RRID: AB_2814149 (BioLegend Cat. No. 306539) AB_2814150 (BioLegend Cat. No. 306540)
Structure: Rhodopsin family, G-protein linked seven transmembrane glycoprotein, 45 kD
Distribution: T cells and B cells, dendritic cells, monocytes, granulocytes, hematopoietic progenitors, endothelial cells
Function: B lymphopoiesis and myelopoiesis, cardiogenesis, blood vessel formation, cerebellar development
Ligand/Receptor: SDF-1 receptor, coreceptor for X4 HIV-1
Cell Type: B cells, Dendritic cells, Endothelial cells, Granulocytes, Hematopoietic stem and progenitors, Mesenchymal Stem Cells, Monocytes, Neural Stem Cells, T cells, Tregs
Biology Area: Cell Biology, Immunology, Innate Immunity, Neuroinflammation, Neuroscience, Neuroscience Cell Markers, Stem Cells
Molecular Family: CD Molecules, Cytokine/Chemokine Receptors, GPCR
Antigen References: 1. Berger E, et al. 1999. Annu. Rev. Immunol. 17:657. 2. Loetscher P, et al. 2000. Adv. Immunol. 74:127. 3. Murphy P, et al. 2000. Pharmacol. Rev. 52:145.
Gene ID: 7852
UniProt: View information about CD184 on UniProt.org
Clone: 12G5
Regulatory Status: RUO
Workshop: VII 70204
Other Names: CXCR4, Fusin
Isotype: Mouse IgG2a, κ
Q: Does staining at room temperature or even at 37°C help for checking chemokine receptors expression?
A: Due to continuous recycling of many chemokine receptors, it may be worthwhile to consider staining at room temperature or at 37°C if the staining at lower temperature (which can potentially reduce receptor turnover) is not optimal.
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.