SDF 1a Protein (OPPA02040)

Catalog No: OPPA02040 (Formerly GWB-C8788D)

Size:2UG

Product Info

• Predicted Species Reactivity: Rat
• Product Format: The CXCL12 protein was lyophilized from a concentrated (1 mg/ml) sterile solution containing 20mM Phosphate buffer pH-7.4 and 150mM NaCl. Physical appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
• Host: E. Coli
• Additional Information: Solubility: It is recommended to reconstitute the lyophilized SDF-1a in sterile 18M Omega -cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
  Biological Activity: The specific activity as determined by its ability to chemoattract human peripheral blood monocytes at 50-100 ng/ml.
  Product Introduction: SDF-1 (stromal cell-derived factor-1) is small cytokine belonging to the chemokine family that is officially designated Chemokine (C-X-C motif) ligand 12 (CXCL12). It is produced in two forms, SDF-1*/CXCL12a and SDF-1*/CXCL12b, by alternate splicing of the same gene. Chemokines are characterized by the presence of four conserved cysteines, which form two disulfide bonds. The CXCL12 proteins belong to the group of CXC chemokines, whose initial pair of cysteines are separated by one intervening amino acid. CXCL12 is strongly chemotactic for lymphocytes and has been implicated as an important cell co-ordinator during development. During embryogenesis it directs the migration of hematopoietic cells from foetal liver to bone marrow. Mice which were knocked-out for CXCL12 gene were lethal before the birth or within just 1 hour of life. As another role, CXCL12a alters also the electrophysiology of neurons. CXCL12 was shown to be expressend in many tissues in mice (including brain, thymus, heart, lung, liver, kidney, spleen and bone marrow).The receptor for this chemokine is CXCR4, which was previously called fusin. This CXCL12-CXCR4 interaction used to be considered exclusive (unlike for other chemokines and their receptors), but recently it was suggested that CXCL12 is also bound by CXCR7 receptor. The gene for CXCL12 is located on human chromosome 10. In human and mouse both CXCL12 and CXCR4 show high identity of sequence: 99% and 90%, respectively.
  Product Description: Stromal Cell-Derived Factor-1 alpha Rat Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 68 amino acids and having a molecular mass of 7.9 kDa. The SDF-1a is purified by proprietary chromatographic techniques.
• Reconstitution and Storage: Lyophilized SDF-1a although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution CXCL12 should be stored at 4C between 2-7 days and for future use below -18C. For long term storage it is recommended to add a carrier protein (0. 1% HSA or BSA). Please prevent freeze-thaw cycles.
• Purity: Greater than 97.0% as determined by (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
• Peptide Sequence: KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKSNNRQVC IDPKLKWIQE YLDKALNK.

Target Info

• Gene Symbol: rSDF 1a
• Alias Symbols: Sdf1
• NCBI Gene Id: 24772
• Protein Name: Chemokine (C-X-C motif) ligand 12 (Stromal cell-derived factor 1) EMBL AAH78737.1
• Description of Target: Recombinant Rat Stromal Cell-Derived Factor-1 alpha (CXCL12)
• Uniprot ID: Q9QZD1
• Protein Accession #: NP_071513.1
• Protein Size (# AA): Recombinant