Stromal Derived Growth Factor-1beta (SDF-1beta), also called CXCL12, is one of two splice variants made by a wide variety of cells when stimulated by inflammatory cytokines such as, TNF, IL-1 or LPS. SDF-1β signals through the G protein-couple receptor, CXCR4, to recruit activated leukocytes. Human SDF-1β shares 100% identity to feline SDF-1β. Recombinant feline SDF-1beta is a non-glycosylated protein, comprised of 72 amino acids, with a molecular weight of 8.5 kDa. MW: 8.5 kDa. Purity ≥97%