CCL21 is member of the chemokine superfamily and the subfamily of CC chemokines that has an aspartate cysteine-cysteine-leucine motif near its amino-terminus. This protein is involved in inhibits hemopoiesis and stimulates chemotaxis. CCL21 is chemotactic in vitro for thymocytes and activated T-cells, but not for B-cells, macrophages, or neutrophils. It may also play a role in mediating homing of lymphocytes to secondary lymphoid organs. Recombinant CCL21 protein was expressed in E.coli and purified by using conventional chromatography techniques. MW: 14.5 kDa (132 aa, 24-134 aa + His Tag), confirmed by MALDI-TOF. Purity ≥90%