Summary: Cat.No. : CXCL12-629H Product Overview : Recombinant Human CXCL12 (P48061-1) isoform beta (Lys 22- Met 93), fused with no tag, was produced in E. coli. Source : E. coli Species : Human Form : Lyophilized from 0.2μm filtered solution of PBS, pH 7.4 Molecular Mass : The recombinant human CXCL12 consists of 73 amino acids and predicts a molecular mass of 8.6 kDa. It migrates as an approximately 12 kDa band in SDS-PAGE under reducing conditions.