Summary: Cat.No. : DAO-392H Product Overview : Recombinant human DAAO protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography. Source : E.coli Species : Human Tag : His Form : Liquid. In 20 mM Tris-HCl buffer (pH 8.0) containing 20% glycerol 1mM DTT Bio-activity : Specific activity is >3.5 units/mg, in which one unit will oxidatively deaminate 1.0 umole of D-alanine to pyruvate per minute at pH 8.5 at 37C, in the presence of catalase. Molecular Mass : 41.6 kDa (367aa), confirmed by MALDI-TOF