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Process for producing tryptophan

  • US 4,874,698 A
  • Filed: 07/16/1987
  • Issued: 10/17/1989
  • Est. Priority Date: 02/17/1983
  • Status: Expired due to Term
First Claim
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1. A process for producing tryptophan, which comprises:

  • transforming a host microorganism belonging to the genus Corynebacterium or Brevibacterium with a vector containing a DNA fragment containing an anthranilic acid synthetase gene isolated from Brevibacterium flavum ATCC 14067 or Corynebacterium glutamicum ATCC 13032, culturing the transformant in a nutrient medium containing a molasses carbon source, accumulating tryptophan in the culture medium and recovering tryptophan therefrom.

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