期刊
BIOTECHNOLOGY LETTERS
卷 28, 期 12, 页码 877-881出版社
SPRINGER
DOI: 10.1007/s10529-006-9019-5
关键词
2 '-deoxyribonucleoside; deoxyriboaldolase; glycolysis; nucleoside phosphorylase; phosphopentomutase; Saccharomyces cerevisiae
A one-pot enzymatic synthesis of 2'-deoxyribonucleoside from glucose, acetaldehyde, and a nucleobase was established. Glycolysis by baker's yeast ( Saccharomyces cerevisiae) generated ATP which was used to produce D-glyceraldehyde 3-phosphate production from glucose via fructose 1,6-diphosphate. The D-glyceraldehyde 3-phosphate produced was transformed to 2'-deoxyribonucleoside via 2-deoxyribose 5-phosphate and then 2-deoxyribose 1-phosphate in the presence of acetaldehyde and a nucleobase by deoxyriboaldolase, phosphopentomutase expressed in Escherichia coli, and a commercial nucleoside phosphorylase. About 33 mM 2'-deoxyinosine was produced from 600 mM glucose, 333 mM acetaldehyde and 100 mM adenine in 24 h. 2'-Deoxyinosine was produced from adenine due to the adenosine deaminase activity of E. coli transformants.
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