Purity: > 90% by SDS - PAGE Format: Liquid. In 10mM sodium citrate(pH 3.5), 20% glycerol, 2mM DTT. Chemokine (C-X-C motif) ligand 11 (CXCL11) is a small cytokine belonging to the CXC chemokine family that is also called Interferon-inducible T-cell alpha chemoattractant (I-TAC) and Interferon-gamma-inducible protein 9 (IP-9). CXCL11 is strongly induced by IFN-gamma and IFN-beta, and weakly induced by IFN-alpha. It is chemotactic for interleukin-activated T-cells but not unstimulated T-cells, neutrophils or monocytes. It is highly expressed in peripheral blood leukocytes, pancreas and liver, with moderate levels in thymus, spleen and lung and low expression levels were in small intestine, placenta and prostate. Recombinant human CXCL11 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by conventional chromatography, after refolding of the isolated inclusion bodies in a renaturation buffer.