Corynebacterium strain for producing L-tryptophan decreased in p

Details Corynebacterium strain for producing L-tryptophan decreased in p Corynebacterium strain for producing L-tryptophan decreased in p

1995-04-27

1997-01-21

Marx, Irene

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

435108, 435843, 435840, C12N 120

Patent

active

055959067

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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