Process for producing L-tryptophan by a Corynebacterium strain h

Details Process for producing L-tryptophan by a Corynebacterium strain h Process for producing L-tryptophan by a Corynebacterium strain h

1993-10-04

1996-01-16

Marx, Irene

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing alpha or beta amino acid or substituted amino acid...

4352521, C12P 1322

Patent

active

054847168

ABSTRACT:
The invention relates to a bacterial process for producing L-tryptophan, L-tyrosine or L-phenylalanine. The process utilizes a coryneform glutamic acid-producing bacterium being capable of producing L-tryptophan, L-tyrosine or L-phenylalanine and also decreased or lacked in phosphoenolpyruvate carboxylase activity. The mutant strain is then cultured in order to accumulate the amino acid in a medium and the amino acid is recovered therefrom.

REFERENCES:
patent: 4742007 (1988-05-01), Kino et al.
patent: 4757009 (1988-07-01), Sano et al.
patent: 5275940 (1994-01-01), Kino
Herrmann et al, "Amino Acids Biosynthesis and Genetic Regulation", 1983, Addison Wesley, p. 420.
Goodfellow et al, "The Biology of the Actinomycetes" 1984, Academic Press, pp. 77-79.

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