EC 1.11.1.1 Recombinant. NADH peroxidase from Enterococcus faecalis (Streptococcus faecalis). In 3.2 M ammonium sulphate. Specific activity: ~ 50 U/mg on NADH in the presence of hydrogen peroxide at pH 5.5 and 25oC. Store at 4oC.