The structural interpretations of residue Ser297 in catalytic efficiency of Escherichia coli phenylalanine aminotransferase.
[No authors listed]
摘要
Escherichia coli phenylalanine aminotransferase (ecPheAT) catalyzes the biosynthesis of phenylalanine and tyrosine. The crystal structure of ecPheAT was determined in our previous study. The comparison of the 3-D structure of several aminotransferases revealed that the residue at position 297 plays an important role in enzyme function. Analysis of activities and kinetic parameters of wild type and mutant ecPheATs suggested that the residue Ser(297) was structurally selected for better catalytic efficiency. Computational modeling of ecPheAT mutants further suggested that Ser in position 297 could make ecPheAT easy with change of conformation from open form to closed form.
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基因功能
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原始数据
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文献解读
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