Recombinant Rat Stromal-Cell Derived Factor-1 alpha/CXCL12 是 CXC 趋化因子家族成员,能够结合 CXCR4、CXCR7,与肿瘤的增殖、存活、血管生成、转移及免疫抑制有关。 Synonyms rRtSDF-1α/CXCL12; C-X-C motif chemokine 12; PBSF ; 重组大鼠基质细胞衍生因子-1α/CXCL12 Species RatSource E. coli Accession Q80YV8 Gene ID 24772 Molecular Weight Approximately 7.9 kDa AA Sequence KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKSNNRQVC IDPKLKWIQE YLDKALNK Biological Activity Full biological activity determined by a chemotaxis bioassay using human peripheral blood monocytes is in a concentration range of 50-100 ng/ml. Appearance Lyophilized powder. Formulation Lyophilized after extensive dialysis against 20 mM PB, pH 7.4, 150 mM NaCl. Endotoxin Level <1 EU/μg, determined by LAL method. Reconstitution Reconstitute the lyophilized recombinant Rat Stromal-Cell Derived Factor-1 alpha/CXCL12 (rRtSDF-1α/CXCL12) to 0.1-1.0 mg/mL using sterile distilled water or aqueous buffer containing 0.1% BSA. Storage & Stability Lyophilized recombinant Rat Stromal-Cell Derived Factor-1 alpha/CXCL12 (rRtSDF-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]. |