Recombinant Mouse SDF-1β/CXCL12β

Description :
FAQ COA 已发表文献 CXCL12, also known as SCYB12, PBSF and SDF-1 beta, is an 8.3 kDa, heparin-binding member of the CXC (or alpha-) family of chemokines. SDF-1 is highly conserved between species, mouse CXCL12 shares approximately 92 % amino acid sequence identity with human CXCL12.In all SDF-1 isoforms, SDF-1 is the canonical sequence. It has the complete amino acids in the C-terminal tail. On the cell surface, the receptor for this chemokine is CXCR4 and syndecan4. CXCL12 is strongly chemotactic for T-lymphocytes, monocytes, but not neutrophils.Although alpha and beta isoforms show similar activity, SDF-1 alpha is differentially processed, and different cells secrete the two isoforms. SDF-1 alpha and beta are reported to be monomers at neutral pH and physiologic ionic strength. Product Properties Synonyms CXCL12/SDF-1 beta, TPAR1, PBSF, TLSF Accession P40224 GeneID 20315 Source E.coli-derived mouse SDF-1/CXCL12 protein, Lys22-Met93. Molecular Weight Approximately 8.5 kDa. AA Sequence KPVSLSYRCP CRFFESHIAR ANVKHLKILN TPNCALQIVA RLKNNNRQVC IDPKLKWIQE YLEKALNKRL KM Tag None Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder. Purity >97% by SDS-PAGE and HPLC analyses. Biological Activity The biological activity determined by a chemotaxis bioassay using human peripheral blood monocytes is in a concentration range of 50-100 ng/mL. Fully biologically active when compared to standard. Endotoxin Formulation Lyophilized from a 0.2 m filtered concentrated solution in 20 mM PB, pH 7.4, 150 mM NaCl. Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at -20. Further dilutions should be made in appropriate buffered solutions.