Description: May regulate apoptosis, cell proliferation and cell differentiation. Binds beta-galactoside and a wide array of complex carbohydrates. Inhibits CD45 protein phosphatase activity and therefore the dephosphorylation of Lyn kinase. (www.uniprot.org) Produced in E.coli as a single, non-glycosylated, polypeptide chain containing 134 amino acids