期刊
BIOTECHNOLOGY LETTERS
卷 22, 期 19, 页码 1537-1542出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1005624811710
关键词
acetyl phosphate; ATP regeneration; cell-free protein synthesis; chloramphenicol acetyltransferase; glucose 6-phosphate; phosphoenolpyruvate; pyruvate
The utilization efficiency of a secondary energy source in a cell-free protein synthesis system can be improved by use of a metabolic inhibitor. Oxalate, a potent inhibitor of phophoenolpyruvate synthetase, substantially increased the yield of chloramphenicol acetyltransferase synthesis through the enhanced supply of ATP. Oxalate, at 2.7 mM, increased the synthesis yield by 47% when successive amino acids additions prevent amino acid depletion during protein synthesis. These results suggest that cell-free protein synthesis efficiency could also be improved by disrupting the gene encoding phosphoenolpyruvate synthetase.
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