APPLICATION OF TRANSPORT CARRIER GENE WHICH IMPROVES L-TRYPTOPHAN PRODUCTION EFFICIENCY IN ESCHERICHIA COLI

摘要

A transport protein coding gene, and a method for using a strain containing said gene to increase L-tryptophan production. Specifically, strain L-tryptophan production efficiency can be improved by means of heterologous expression of the ywkB gene from bacillus subtilis on the escherichia coli genome. Performing shake flask fermentation with the strain can accumulate 15.2g/L of L-tryptophan within 24 hours, which is 35% higher than a control strain.