SDF-1 alpha Recombinant Protein

SDF-1 alpha and beta are stromal derived CXC chemokines, and signal through the CXCR4 receptor. SDF-1alpha and beta chemoattract B and T cells, and have been shown to induce migration of CD34+ stem cells. Additionally, the SDF-1 proteins exert HIV suppressive activity in cells expressing the CXCR4 receptor. Recombinant rat SDF-1α is a 7.9 kDa protein containing 68 amino acid residues.

The lyophilized SDF-1 alpha recombinant protein is stable for at least 2 years from date of receipt at -20˚ C. Reconstituted SDF-1 alpha is stable for at least 3 months when stored in working aliquots with a carrier protein at -20˚ C. As with any protein, exposing SDF-1 alpha recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.