SIRPA Human, HEK

Source:HEK293 Cells.Physical Appearance:Sterile Filtered clear solution.Biological ActivityMeasured by its binding ability in a functional ELISA with Human CD47.Signal-Regulatory Protein Alpha, SIRPA belongs to the signal-regulatory-protein (SIRP) family, as well as the immunoglobulin super family. The members of the SIRP family are receptor-type transmembrane glycoproteins which are involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. SIRPA can be phosphorylated by tyrosine kinases. The phospho-tyrosine residues of this PTP have been shown to recruit SH2 domain containing tyrosine phosphatases (PTP), and perform as substrates of PTPs. SIRPA take part in signal transduction mediated by a variety of growth factor receptors. CD47 has been shown to be a ligand for SIRPA.SIRPA Human Recombinant produced in HEK293 cells is a single, glycosylated polypeptide chain (27-373a.a) containing 356 amino acids and having a molecular mass of 39kDa.SIRPA is fused to a 6 amino acid His-tag at C-terminus, and is purified by proprietary chromatographic techniques.