An Unexpected Promiscuous Activity of 4??Oxalocrotonate Tautomerase: The cis–trans Isomerisation of Nitrostyrene

E Zandvoort, EM Geertsema, BJ Baas, WJ Quax…

Index: Zandvoort, Ellen; Geertsema, Edzard M.; Baas, Bert-Jan; Quax, Wim J.; Poelarends, Gerrit J. ChemBioChem, 2012 , vol. 13, # 13 p. 1869 - 1873

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Citation Number: 10

Abstract

The tautomerase superfamily consists of homologous proteins with a characteristic βαβ structural fold and a conserved catalytic N-terminal proline.[1] 4-Oxalocrotonate tautomerase (4-OT) from Pseudomonas putida mt-2 is a member of this superfamily, and catalyses the enol-keto tautomerisation of 2-hydroxyhexa-2, 4-dienedioate(1) to 2-oxohex-3-enedioate(2; Scheme 1).[2] In this natural activity of 4-OT, the Pro1 residue functions as the catalytic ...

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