The effect of nitrite in the sulfoxidation of organic sulfides catalyzed by myoglobin (Mb) in the presence of hydrogen peroxide has been investigated. A general improvement in enantioselectivity was found for the reaction catalyzed by horse heart metMb and a series of sperm whale metMb derivatives including the wild type protein, the active site mutants T67K Mb, T67R Mb, T67R/S92D Mb, and the T67K Mb derivative reconstituted with the modified prosthetic group protohemin-L- histidine methyl ester. (C) 2004 Elsevier Ltd. All rights reserved.
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Aditanar Coll Arts & Sci, Res Dept Chem, Tiruchendur 628216, Tamil Nadu, India
Manonmaniam Sundaranar Univ, Tirunelveli 627012, Tamil Nadu, IndiaAditanar Coll Arts & Sci, Res Dept Chem, Tiruchendur 628216, Tamil Nadu, India
Kavitha, C.
Subramaniam, P.
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Manonmaniam Sundaranar Univ, Tirunelveli 627012, Tamil Nadu, IndiaAditanar Coll Arts & Sci, Res Dept Chem, Tiruchendur 628216, Tamil Nadu, India