Human GRO-beta is a member of the C-X-C family of chemokines and promotes neutrophil and basophil chemotaxis and degranulation. GRO-beta like GRO-alpha specifically inhibits growth factor-stimulated proliferation of capillary endothelial cells in a dose-dependent manner. ||Source:|Recombinant protein corresponding to 73aa residues from human GRO-beta, expressed in E. coli. ||Molecular Weight:|~7.9kD||Biological Activity:|Determined by its ability to chemoattract CXCR2 transfected 293 cells using a concentration range of 10-100ng/ml.||Endotoxin:|<0.1ng/ug||Storage and Stability:|Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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