Summary: Cat.No. : Sirpa-23R Product Overview : Recombinant Rat Sirpa (P97710) (Met1-Asn373), fused with a polyhistidine tag at the C-terminus, was produced in Human Cells. Source : Human Cells Species : Rat Tag : His Predicted N Terminal : Lys 32 Form : Lyophilized from sterile PBS, pH 7.4.Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Molecular Mass : The recombinant rat SIRPA comprises 353 amino acids and predicts a molecular mass of 39 kDa. The apparent molecular mass of the recombinant protein is approximately 63-80 kDa in SDS-PAGE under reducing conditions due to glycosylation.