Physiological Effects of a Constitutive Tryptophanase in Bacillus alvei
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چکیده
منابع مشابه
Catalytic studies on tryptophanase from Bacillus alvei.
Tryptophanase from Bacillus alvei exhibited the expected spectrum of pyridoxal-5'-phosphate-dependent reactions. It exhibited l-serine dehydratase, S-alkyl-cysteine lyase, and cysteine desulfhydrase activities, as well as the classic tryptophanase reactions (all beta elimination reactions). It also acted as a tryptophan synthetase (beta replacement reactions) using indole plus l-serine or l-cys...
متن کاملPhysiological role of tryptophanase in control of tryptophan biosynthesis in Bacillus alvei.
Hoch, J. A. (University of Illinois, Urbana), and R. D. DeMoss. Physiological role of tryptophanase in control of tryptophan biosynthesis in Bacillus alvei. J. Bacteriol. 91:667-672. 1966.-Indole excretion occurred early in the exponential growth phase, and derived mainly from biosynthetic intermediates of tryptophan. Tryptophan cleavage by tryptophanase contributed about 1.5% of the indole exc...
متن کاملNonmotile Variants of Bacillus alvei.
The ability of Bacillus alvei to form migrating colonies upon the surfaces of solid media free from excessive moisture was reported previously by Smith and Clark (1938).2 A similar property has been noted by Roberts (1935) for Bacillus rotans. Recently Shinn (1938), in a cinematographic study of colony motility of B. alvei, remarked that it was surprising that such motility had been so long ove...
متن کاملSelection of mutants of Escherichia coli constitutive for tryptophanase.
Proc. Natl. Acad. Sci. U.S. 40:1064, 1954). The galactose mutations are of the same stability as the streptomycin-sensitivity gene. Some 60 other galactose mutants are similar to those reported in Table 1. No instances of mutability grossly higher than Gal16 or Galg have been noted, and no certain cases of failure to revert have been found. Combinations of Gal mutations have been synthesized vi...
متن کاملTryptophanase in diverse bacterial species.
The distribution of tryptophanase was studied. The highest observed specific activity, mumoles per minute per milligram (dry weight) cells, is given in parentheses after each species. Tryptophanase was inducible and repressible in Escherichia coli (.914), Paracolobactrum coliforme (.210), Proteus vulgaris (.146), Aeromonas liquefaciens (.030), Photobacterium harveyi (.035), Sphaerophorus varius...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1965
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.90.3.604-610.1965