Cover image for Vol. 8 Issue 3

Editor: Michael Rowan; Editorial Board Chairs: Uwe Bornscheuer, Luis A. Oro, Bert Weckhuysen

Impact Factor: 4.556

ISI Journal Citation Reports © Ranking: 2014: 31/139 (Chemistry Physical)

Online ISSN: 1867-3899

Associated Title(s): Advanced Synthesis & Catalysis, Angewandte Chemie International Edition, Chemistry - A European Journal, ChemBioChem, ChemElectroChem, ChemPhysChem, ChemSusChem

5_12/2013Cover Picture: Tailoring the S-Selectivity of 2-Succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate Synthase (MenD) from Escherichia coli (ChemCatChem 12/2013)

Stereoselective traffic engineering The cover picture shows how engineered S-selective EcMenD variants catalyze the carboligation of α-ketoglutarate and benzaldehyde derivatives with excellent enantioselectivities of up to 99 % ee S, in contrast to the wild-type enzyme, which produces R-enantiomers. In their Full Paper on p. 3587 ff., M. Pohl et al. describe how they engineer S-selective EcMenD variants by optimizing steric properties and stabilization of the acceptor substrate in the S-pocket. This method, inspired by the recently developed S-pocket concept, involves opening the S-pocket with simultaneous destabilization of the R-pathway to enhance the S-selectivity of thiamine diphosphate-dependent enzymes.

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