Profile: Shenandoah Biotechnology, Inc. specializes in providing molecular, immunological, and recombinant protein products. Stromal derived growth factor-1 (SDF-1) beta is an important chemoattractant for T-lymphocytes and monocytes which signal through CXCR4. Recombinant feline SDF-1-beta is a polypeptide chain comprised of 72 amino acids with a molecular weight of 8,526 Da. The activity of SDF-1 is determined by the ability to chemoattract human peripheral T cells stimulated with IL-2 and PHA, in a concentration range from 10-75 ng/ml. Our anti-human IL-17A 1524 clone is effectively used as a detector antibody in sandwich ELISA applications to detect the IL-17A homodimer (100-87). It does not show cross-reactivity with mouse or rat IL-17A in western blotting or ELISA applications.