2009
DOI: 10.1002/adsc.200900644
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Directed Evolution of an Enantioselective Enoate‐Reductase: Testing the Utility of Iterative Saturation Mutagenesis

Abstract: Directed evolution utilizing iterative saturation mutagenesis (ISM) has been applied to the old yellow enzyme homologue YqjM in the quest to broaden its substrate scope, while controlling the enantioselectivity in the bioreduction of a set of substituted cyclopentenone and cyclohexenone derivatives. Guided by the known crystal structure of YqjM, 20 residues were selected as sites for saturation mutagenesis, a pooling strategy based on the method of Phizicky [M. R. Martzen, S. M. McCraith, S. L. Spinelli, F. M.… Show more

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Cited by 170 publications
(269 citation statements)
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“…Class III enzymes possess a conserved alanine at this position. Directed evolution performed on YqjM by Reetz and co-workers enabled control of the enantioselectivity for the bioreduction of substituted cyclopentenone and cyclohexenone substrates [131]. A recent review by Stewart and Amato on protein engineering of OYEs gives a good overview on the possibilities of stereochemical outcome [130].…”
Section: Classification Of Oyes With Respect To Substratesmentioning
confidence: 99%
“…Class III enzymes possess a conserved alanine at this position. Directed evolution performed on YqjM by Reetz and co-workers enabled control of the enantioselectivity for the bioreduction of substituted cyclopentenone and cyclohexenone substrates [131]. A recent review by Stewart and Amato on protein engineering of OYEs gives a good overview on the possibilities of stereochemical outcome [130].…”
Section: Classification Of Oyes With Respect To Substratesmentioning
confidence: 99%
“…To explore the reduction of anhydromevalonolactone to βMδVL by enoate reductases, we cloned Oye2 and Oye3 from S. cerevisiae (35), wild-type and mutant YqjM (C26D and I69T) from Bacillus subtilis (36). The strains carrying the anhydromevalonolactone pathway and Oye2 or mutant YqjM successfully produced 180 or 270 mg L -1 βMδVL, respectively, directly from glucose ( Fig.…”
Section: Construction Of a Nonnatural Metabolic Pathway For Biosynthementioning
confidence: 99%
“…[17] Wir haben für solche "schwierigen" Template auch ein zweites Verfahren zur Sättigungsmutagenese entwickelt und auf die Enoat-Reduktase YqjM erfolgreich angewendet (Abschnitt 3.4). [18] [18] Die Größe einer Bibliothek kann zwischen mehreren hundert und einigen Millionen variieren, je nachdem, wieviel Laborarbeit investiert werden soll. [4] Im Falle sehr großer Bibliotheken entstehen empfindliche Screeningprobleme, [10] insbesondere wenn es um Enantioselektivität geht.…”
Section: Einführungunclassified
“…[84] Ein interessanter Fall betrifft die gelenkte Evolution [18] Obwohl ISM naturgemäß relativ kleine Mutantenbibliotheken erfordert, wollten wir das Screening-Aufkommen noch weiter durch Pooling [24] (Abschnitt 1) reduzieren. Ausgehend von der von Phizicky vorgestellten Idee, [85] wonach prädefinierte Pools von Proteinen aus Genomsequenzen gescreent werden, entwickelten wir ein stufenweises GC-basiertes Protokoll (Schema 22).…”
Section: Erweiterung Der Substratakzeptanz Und Erhöhung Derunclassified
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