1.1.99.20 0.24 - PEG-1000 mutant enzyme H465A, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161 1.1.99.20 0.54 - PEG-mono-4-nonylphenyl ether, averaging 10 ethoxy units mutant enzyme H465A, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161 1.1.99.20 1.3 - PEG-mono-4-nonylphenyl ether, averaging 10 ethoxy units mutant enzyme N90A, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161 1.1.99.20 1.9 - PEG-1000 mutant enzyme N90A, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161 1.1.99.20 3.6 - PEG-1000 wild type enzyme, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161 1.1.99.20 5.2 - PEG-mono-4-nonylphenyl ether, averaging 10 ethoxy units wild type enzyme, in 0.1 M Tris-HCl buffer (pH 8.0), at 25°C 725161