Recombinant Human Stromal-Cell Derived Factor-1 alpha/CXCL12 是 CXC 趨化因子家族成員,能夠結(jié)合 CXCR4、CXCR7,與腫瘤的增殖、存活、血管生成、轉(zhuǎn)移及免疫抑制有關(guān)。 Synonyms rHuSDF-1α/CXCL12; C-X-C motif chemokine 12; PBSF ; 重組人基質(zhì)細胞衍生因子-1α/CXCL12 Species HumanSource E. coli Accession P48061 Gene ID 6387 Molecular Weight Approximately 8.0 kDa AA Sequence KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKNNNRQVC IDPKLKWIQE YLEKALNK Biological Activity Full 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. Appearance Lyophilized powder. Formulation Lyophilized after extensive dialysis against 20 mM PB pH 7.0, 130 mM NaCl. Endotoxin Level <1 EU/μg, determined by LAL method. Reconstitution Reconstitute the lyophilized recombinant Human Stromal-Cell Derived Factor-1 alpha/CXCL12 (rHuSDF-1α/CXCL12) to 0.1-1.0 mg/mL using sterile distilled water or aqueous buffer containing 0.1% BSA. Storage & Stability Lyophilized recombinant Human Stromal-Cell Derived Factor-1 alpha/CXCL12 (rHuSDF-1α/CXCL12) is stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage. Shipping Room temperature in continental US; may vary elsewhere. Background CXCL12 belongs to the CXC chemokine family, and is expressed in two isoforms, SDF-1α and SDF-1β, binds to CXCR4 and CXCR7. CXCL12/CXCR4 signal is implicated in tumor proliferation, survival, vascularization, metastasis, and immunosuppression[1]. |