Isolation and expression of a Bacillus cereus gene encoding benzil reductase
β Scribed by Reiji Maruyama; Mikio Nishizawa; Yasushi Itoi; Seiji Ito; Masami Inoue
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 132 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0006-3592
- DOI
- 10.1002/bit.1191
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β¦ Synopsis
Abstract
Benzil was reduced stereospecifically to (S)βbenzoin by Bacillus cereus strain Timβr01. To isolate the gene responsible for asymmetric reduction, we constructed a library consisting of Escherichia coli clones that harbored plasmids expressing Bacillus cereus genes. The library was screened using the halo formation assay, and one clone showed benzil reduction to (S)βbenzoin. Thus, this clone seemed to carry a plasmid encoding a Bacillus cereus benzil reductase. The deduced amino acid sequence had marked homologies to the Bacillus subtilis yueD protein (41% identity), the yeast open reading frame YIR036C protein (31%), and the mammalian sepiapterin reductases (28% to 30%), suggesting that benzil reductase is a novel shortβchain deβhydrogenases/ reductase. Β© 2001 John Wiley & Sons, Inc. Biotechnol Bioeng 75: 630β633, 2001.
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