Extended substrate range of thiamine diphosphate-dependent MenD enzyme by coupling of two C–C-bonding reactions
Extended substrate range of thiamine diphosphate-dependent MenD enzyme by coupling of two C–C-bonding reactions
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通过耦合两个 CâC 键合反应扩展二磷酸硫胺素依赖性 MenD 酶的底物范围
DOI:
10.1007/s00253-018-9259-z
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发表时间:
2018
影响因子:
5
通讯作者:
Sprenger GA
中科院分区:
文献类型:
--
作者:
Schapfl M;Baier S;Fries A;Ferlaino S;Waltzer S;Müller M;Sprenger GA
Carboligations catalyzed by aldolases or thiamine diphosphate (ThDP)-dependent enzymes are well-known in biocatalysis to deliver enantioselective chain elongation reactions. A pyruvate-dependent aldolase (2-oxo-3-deoxy-6-phosphogluconate aldolase [EDA]) introduces a chiral center when reacting with the electrophile, glyoxylic acid, delivering the (S)-enantiomer of (4S)-4-hydroxy-2-oxoglutarate [(S)-HOG]. The ThDP-dependent enzyme MenD (2-succinyl-5-enol-pyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase (SEPHCHC synthase)) enables access to highly functionalized substances by forming intermolecular C–C bonds with Michael acceptor compounds by a Stetter-like 1,4- or a benzoin-condensation 1,2-addition of activated succinyl semialdehyde (ThDP adduct formed by decarboxylation of 2-oxoglutarate). MenD-catalyzed reactions are characterized by high chemo- and regioselectivity. Here, we report (S)-HOG, in situ formed by EDA, to serve as new donor substrate for MenD in 1,4-addition reactions with 2,3-trans-CHD (2,3-trans-dihydroxy-cyclohexadiene carboxylate) and acrylic acid. Likewise, (S)-HOG serves as donor in 1,2-additions with aromatic (benzaldehyde) and aliphatic (hexanal) aldehydes. This enzyme cascade of two subsequent C–C bond formations (EDA aldolase and a ThDP-dependent carboligase, MenD) generates two new stereocenters.
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影响因子:
5.2
作者:
Beigi, Maryam;Waltzer, Simon;Mueller, Michael
通讯作者:
Mueller, Michael
影响因子:
5
作者:
Kulig, Justyna;Simon, Robert C.;Rother, Doerte
通讯作者:
Rother, Doerte
影响因子:
3.5
作者:
Walters,MatthewJ;Srikannathasan,Velupillai;McEwan,AndrewR;Naismith,JamesH;Fierke,CarolA;Toone,EricJ
通讯作者:
Toone,EricJ
影响因子:
5.4
作者:
C. Guérard‐Hélaine;M. E. S. Moreira;Nadia Touisni;L. Hecquet;M. Lemaire;V. Hélaine
通讯作者:
C. Guérard‐Hélaine;M. E. S. Moreira;Nadia Touisni;L. Hecquet;M. Lemaire;V. Hélaine
影响因子:
4.1
作者:
M. Sudar;Đ. Vasić;Michael Müller;Alexandra Walter;Z. Blažević
通讯作者:
Z. Blažević