Recombinant Human SDF-1 a (rHu SDF-1 a/CXCL12- a)

• Synonyms:

  SDF-1 alpha, hSDF-1 alpha, IRH, hIRH, PBSF

• CAS Number:

  9000-83-3

• Source:

  Escherichia coli.

• Purity:

  > 97 % by SDS-PAGE and HPLC analyses.

• Bioactivity:

  Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using PHA and rHuIL-2 activated human peripheral blood T-lymphocytes is in a concentration range of 20-80 ng/ml.

• Molecular Weight:

  Approximately 8.0 kDa, a single non-glycosylated polypeptide chain containing 68 amino acids.

• Storage Conditions:

  This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.

• Formulation:

  Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB pH 7.0, 130 mM NaCl.

• Host or Source:

  Human