Site-saturation mutagenesis of tryptophan 116 of Saccharomyces pastorianus old yellow enzyme uncovers stereocomplementary variants

…, DJ Bougioukou, JD Stewart

Index: Padhi, Santosh Kumar; Bougioukou, Despina J.; Stewart, Jon D. Journal of the American Chemical Society, 2009 , vol. 131, p. 3271 - 3280

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Citation Number: 84

Abstract

Site-saturation mutagenesis was used to generate all possible replacements for Trp 116 of Saccharomyces pastorianus (formerly Saccharomyces carlsbergensis) old yellow enzyme (OYE). Our original hypothesis that smaller amino acids at position 116 would allow better acceptance of bulky 3-alkyl-substituted 2-cyclohexenones proved incorrect. Instead, Phe and Ile replacements favored the binding of some substrates in an opposite orientation, ...

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