Transglutaminase from guinea pig liver, lyophilized powder, >=1.5 units/mg protein
Trehalase from porcine kidney, buffered aqueous glycerol solution, >=1.0 units/mg protein
Neuraminidase from Vibrio cholerae, Type II, buffered aqueous solution, 8-24 units/mg protein (Lowry, using NAN-lactose)