Measured by its ability to neutralize CXCL11/I‑TAC-induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CXCR3. The Neutralization Dose (ND50) is typically 0.5-1.5 µg/mL in the presence of 0.05 µg/mL Recombinant Human CXCL11/I‑TAC.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Chemotaxis Induced by CXCL11/I‑TAC and Neutralization by Human CXCL11/I‑TAC Antibody.
Recombinant Human CXCL11/I‑TAC (Catalog # 672-IT) chemoattracts the BaF3 mouse pro‑B cell line transfected with human CXCR3 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 CXCL11/I‑TAC (0.05 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human CXCL11/I-TAC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF260). The ND50 is typically 0.5-1.5 µg/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
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.
CXCL11, also known as I-TAC, SCYB9B, H174 and beta -R1, is a non-ELR CXC chemokine. CXCL11 cDNA encodes a 94 amino acid (aa) residue precursor protein with a 21 aa residue putative signal sequence, which is cleaved to form the mature 73 aa residue protein. CXCL11 shares 36% and 37% amino acid sequence homology with IP-10 and MIG (two other known human non-ELR CXC chemokines), respectively. CXCL11 is expressed at low levels in normal tissues including thymus, spleen and pancreas. The expression of CXCL11 mRNA is radically up regulated in IFN-gamma and IL-1 stimulated astrocytes. Moderate increase in expression is also observed in stimulated monocytes. CXCL11 has potent chemoattractant activity for IL-2 activated T cells and transfected cell lines expressing CXCR3, but not freshly isolated T cells, neutrophils, or monocytes. The gene encoding CXCL11 has been mapped to chromosome 4.
Cole, K. et al. (1998) J. Exp. Med. 187:2009.
Sandhya Rani, M. et al. (1996) J. Biol. Chem. 271:22878.
Lou, Y. et al. (1998) J. Neurovirol. 4:575.
Entrez Gene IDs:
6373 (Human); 56066 (Mouse)
beta-R1; b-R1; chemokine (C-X-C motif) ligand 11; CXCL11; H174; H174IP9; Interferon gamma-inducible protein 9; Interferon-inducible T-cell alpha chemoattractant; IP-9member 11; ITAC; I-TAC; I-TACMGC102770; SCYB9B; small inducible cytokine subfamily B (Cys-X-Cys), member 9B; Small-inducible cytokine B11
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
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