共 41 条
Nicotinamide-Dependent Ene Reductases as Alternative Biocatalysts for the Reduction of Activated Alkenes
被引:41
作者:
Durchschein, Katharina
[1
]
Wallner, Silvia
[2
]
Macheroux, Peter
[2
]
Schwab, Wilfried
[3
]
Winkler, Thorsten
[4
]
Kreis, Wolfgang
[5
]
Faber, Kurt
[1
]
机构:
[1] Graz Univ, Dept Chem Organ & Bioorgan Chem, A-8010 Graz, Austria
[2] Graz Univ Technol, Inst Biochem, A-8010 Graz, Austria
[3] Tech Univ Munich, D-80333 Munich, Germany
[4] Univ Dusseldorf, Inst Mol Enzyme Technol, Res Ctr Julich, D-52426 Julich, Germany
[5] Univ Erlangen Nurnberg, Dept Biol, D-91058 Erlangen, Germany
基金:
奥地利科学基金会;
关键词:
Alkenes;
Reduction;
Biotransformations;
Enzymes;
OLD YELLOW ENZYME;
C=C-BONDS;
ASYMMETRIC BIOREDUCTION;
ENOATE REDUCTASES;
PROGESTERONE;
5-BETA-REDUCTASE;
CULTURED-CELLS;
CDNA CLONING;
OXIDOREDUCTASE;
PURIFICATION;
EXPRESSION;
D O I:
10.1002/ejoc.201200776
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Four NAD(P)H-dependent non-flavin ene reductases have been investigated for their ability to reduce activated C=C bonds in an asymmetric fashion by using 20 structurally diverse substrates. In comparison with flavin-dependent Old Yellow Enzyme homologues, a higher degree of electronic activation was required, because the best activities were obtained with enals and nitroalkenes rather than enones and carboxylic esters. Although FaEO from Fragaria x ananassa (strawberry) and its homologue SlEO from Solanum lycopersicum (tomato) exhibited a narrow substrate spectrum, progesterone 5 beta-reductase (At5 beta-StR) from Arabidopsis thaliana (thale cress) and leukotriene B4 12-hydroxydehydrogenase (LTB4DH/PGR) from Rattus norvegicus (rat) appear to be promising candidates, in particular for the asymmetric bioreduction of open-chain enals, nitroalkenes and alpha,beta-unsaturated gamma-butyrolactones. Competing nitro reduction and non-enzymatic WeitzScheffer epoxidation were largely suppressed.
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页码:4963 / 4968
页数:6
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