| Field | Specification |
|---|---|
| Target | |
| Alternative names | C-X-C chemokine receptor type 4;CXC-R4;CXCR-4;FB22;Fusin;HM89;LCR1;Leukocyte-derived seven transmembrane domain receptor;LESTR;Lipopolysaccharide-associated protein 3;LAP-3;LPS-associated protein 3;NPYRL;Stromal cell-derived factor 1 receptor;SDF-1 receptor;CD184;CXCR4; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human CXCR4, different from the related rat and mouse sequences by two amino acids. |
| Molecular weight | |
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| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes C-X-C chemokine receptor type 4 (gene CXCR4) in human, mouse and rat samples and is validated for Western blot and IHC. The predicted molecular weight is 39.7 kDa, and the supplier reports an observed band at about 40–43 kDa.
CXCR4 is a G protein-coupled receptor for the chemokine CXCL12 (SDF-1). It controls retention and homing of hematopoietic stem cells in the bone marrow and guides lymphocyte trafficking and embryonic cell migration. CXCR4 is also a coreceptor for T-tropic HIV-1 and is widely studied in cancer metastasis and stem cell mobilization.
| Target | C-X-C chemokine receptor type 4 (gene CXCR4; UniProt P61073, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg thimerosal; 0.05 mg NaN3; plus stabilizers |
| Calculated MW | 39.7 kDa |
| Observed MW | 40–43 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| IHC (paraffin sections) | 0.5–1 µg/mL (Human) |
|---|---|
| Western blot | 0.1–0.5 µg/mL (Human, Rat, Mouse) |
Samples with a confirmed band (WB): human THP-1 cells, human HeLa cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 50 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:10000, ECL detection.
Samples with confirmed staining (IHC): human mammary cancer tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in citrate buffer (pH 6).
Immunogen
Synthetic peptide from the N-terminal region of human CXCR4. It differs from the rat and mouse sequences at two residues.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places C-X-C chemokine receptor type 4 in the cell membrane, cell junction, early endosome and late endosome. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
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Jun Liu et al. (2013) Overexpression of CXCR4 in tracheal epithelial cells promotes their proliferation and migration to a stromal cell-derived factor-1 gradient. Experimental Biology and Medicine. 10.1177/1535370213477598
