重组人趋化因子CXCL12(SDF-1)由我们的大肠杆菌表达系统制备，目的基因编码的Ser19-Met93表达纯化而来。

别名：Stromal Cell-Derived Factor 1;SDF-1;hSDF-1;C-X-C Motif Chemokine 12;Intercrine Reduced in Hepatomas;IRH;hIRH;Pre-B Cell Growth-Stimulating Factor;PBSF;CXCL12;SDF1;SDF1A;SDF1B

质量控制：
纯度：＞95%(还原性SDS-PAGE)。
内毒素：＜0.1ng/μg(1 EU/μg)by LAL

CXCL12/SDF-1制剂：冻干品

CXCL12/SDF-1保存：
冻干蛋白可在-20℃长期保存，室温也可稳定保存3周。
复溶蛋白溶液可在4～7℃保存2～7天。
复溶后建议分装冻存在-20℃，可保存3个月，应避免反复冻融。

CXCL12/SDF-1复溶：
1、试剂开盖前请先离心。
2、复溶浓度应大于100μg/ml.
3、冻干蛋白溶于ddH2O中
4、复溶后根据使用量分装保存，避免反复冻融。

关于CXCL12/SDF-1：
Stromal Cell-Derived Factor-1(SDF-1)is a chemokine member of the intercrine family.SDF1 is expressed as five isoforms that differ only in the C terminal tail.SDF1α and SDF1β are identical except for the four residues present in the C-terminus of SDF1β but absent from SDF1α.SDF1 isoforms interact with CXCR4 and CXCR7 receptors on the cell surface,and can also bind syndecan4.SDF1 is known to influence lymphopoiesis,regulate patterning and cell number of neural progenitors,and promote angiogenesis.It also enhances the survival of myeloid progenitor cells.