Method for producing purine nucleosides and nucleotides by fermentation using bacterium belonging to the genus Bacillus or Escherichia

摘要

Methods for producing purine nucleosides, and purine nucleotides, such as inosine and 5′-inosinic acid are provided which include using a bacterium belonging to the genus Bacillus or to the genus Escherichia wherein the purine nucleoside productivity of said bacterium is enhanced by increasing an activity of the YdhL protein. Also disclosed is the amino acid sequence of the YdhL protein from Bacillus amyloliquefaciens and the gene encoding it.