Thermally stable tryptophanase, process for producing the same,

Details Thermally stable tryptophanase, process for producing the same, Thermally stable tryptophanase, process for producing the same,

1986-06-06

1988-08-02

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Lyase

435 42, 435253, 435822, 435832, C12N 988, C12N 120, C12P 3900, C12R 107, C12R 101

Patent

active

047613742

ABSTRACT:
A thermally stable tryptophanase having (1) an optimum temperature for activity at a pH of 8.0 of about 70.degree. C., and (2) such thermal stability that it is not thermally deactivated when maintained at temperatures up to about 65.degree. C. and a pH of 8.0 for 40 minutes. The thermally stable tryptophanase can be produced by cultivating in a tryptophan-containing culture medium a thermally stable tryptophanase-producing bacterium which does not grow alone in said medium but grows there in the presence of Bacillus sp. strain S, and obtaining the resulting thermally stable tryptophanase from the culture broth. The thermally stable tryptophanase-producing microorganism for use in the above process is a novel organism.

REFERENCES:
patent: 3808101 (1974-04-01), Enei et al.

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