| Literature DB >> 23728814 |
Xiuzhen Gao1, Fang Huang, Jinhui Feng, Xi Chen, Hailing Zhang, Zhixiang Wang, Qiaqing Wu, Dunming Zhu.
Abstract
In order to enlarge the substrate binding pocket of the meso-diaminopimelate dehydrogenase from Symbiobacterium thermophilum to accommodate larger 2-keto acids, four amino acid residues (Phe146, Thr171, Arg181, and His227) were targeted for site saturation mutagenesis. Among all mutants, the single mutant H227V had a specific activity of 2.39 ± 0.06 U · mg(-1), which was 35.1-fold enhancement over the wild-type enzyme.Entities:
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Year: 2013 PMID: 23728814 PMCID: PMC3754726 DOI: 10.1128/AEM.01049-13
Source DB: PubMed Journal: Appl Environ Microbiol ISSN: 0099-2240 Impact factor: 4.792