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Recombinant I-TAC/CXCL11, Human  BK0114-1mg
RecombinantRecombinant I-TAC/CXCL11, Human 
Catalog No.BK0114-1mg
SourceEscherichia coli.
Molecular Weight8.4 kDa, observed by reducing SDS-PAGE.
Purity> 95% as analyzed by SDS-PAGE and HPLC.
Biological ActivityED50 < 2.5 µg/mL, measured by the FLIPR assay using CHO cells transfected with human CXCR3, the receptor of human CXCL11, corresponding to a specific activity of > 400 units/mg.
Physical AppearanceSterile Filtered White lyophilized (freeze-dried) powder.
FormulationLyophilized after extensive dialysis against PBS.
Endotoxin< 0.2 EU/μg, determined by LAL method.
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Recombinant :
Recombinant I-TAC/CXCL11, Human 
Source :
Escherichia coli.
Molecular Weight :
8.4 kDa, observed by reducing SDS-PAGE.
Purity :
> 95% as analyzed by SDS-PAGE and HPLC.
Biological Activity :
ED50 < 2.5 µg/mL, measured by the FLIPR assay using CHO cells transfected with human CXCR3, the receptor of human CXCL11, corresponding to a specific activity of > 400 units/mg.
Physical Appearance :
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation :
Lyophilized after extensive dialysis against PBS.
AA Sequence :
MFPMFKRGR CLCIGPGVKA VKVADIEKAS IMYPSNNCDK IEVIITLKEN KGQRCLNPKS KQARLIIKKV ERKNF
Endotoxin :
< 0.2 EU/μg, determined by LAL method.
Reconstitution :
Reconstituted in ddH2O at 100 μg/mL.
Storage :
Lyophilized recombinant human I-TAC/CXCL11 (rhI-TAC) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhI-TAC remains stable up to 2 weeks at 4°C or up to 3 months at -20°C.
Usage :
This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.
Description :
I-TAC (Interferon-inducible T-cell α Chemoattractant), also known as CXCL11, is a chemokine belonging to the CXCL subfamily. Along with Interferon-γ induced Protein 10 kDa and Monokine Induced by Interferon-γ, I-TAC is strongly up-regulated by Interferon-γ and binds to the G-protein coupled receptor CXCR3. The expression of CXCR3 is associated with Th1-mediated immune responses and mediates chemotaxis of Th1 cells. I-TAC induces, maintains, and amplifies the inflammatory reactions, and sustains chronic immune responses against self-antigens. Although CXCR3 was thought to be the exclusive receptor of I-TAC initially, more evidence has shown that I-TAC can also bind to CXCR4 and CXCR7, and that I-TAC plays important roles in tumor development and angiostasis. Recombinant human I-TAC/CXCL11 (rhI-TAC) produced in E.coli is a single non-glycosylated polypeptide chain containing 74 amino acids. A fully biologically active molecule, rhI-TAC has a molecular mass of 8.4 kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.
Blocking peptide available as BK0114-1mgP
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