Purity > 90% as determined by SDS-PAGE. MW: 30.6kDa. Full Length of Mature Protein: 2-135aa. N-terminal 6xHis-SUMO-tagged. Homo sapiens (Human). 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. Strong inducer of T-cell apoptosis.