Abstract:
:Freundlich, Martin (University of Minnesota, Minneapolis) and Herman C. Lichstein. Tryptophanase-tryptophan synthetase systems in Escherichia coli. III. Requirements for enzyme synthesis. J. Bacteriol. 84:996-1006. 1962.-The requirements for the formation of tryptophanase and tryptophan synthetase in Escherichia coli during repression release were studied. The kinetics of the formation of tryptophan synthetase differed in the two strains examined; this was attributed to differences in the endogenous level of tryptophan in the bacterial cells. The formation of both enzymes was inhibited by chloramphenicol, and by the absence of arginine in an arginine-requiring mutant. These results are indicative of a requirement for protein synthesis for enzyme formation. Requirements for nucleic acid synthesis were examined by use of a uracil- and thymine-requiring mutant, and with purine and pyrimidine analogues. The results obtained suggest that some type of ribonucleic acid synthesis was necessary for the formation of tryptophanase and tryptophan synthetase.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
FREUNDLICH M,LICHSTEIN HCdoi
10.1128/JB.84.5.996-1006.1962keywords:
subject
Has Abstractpub_date
1962-11-01 00:00:00pages
996-1006eissn
0021-9193issn
1098-5530journal_volume
84pub_type
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/JB.181.2.389-395.1999
更新日期:1999-01-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1999-08-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1973-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:1992-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2007-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:1996-12-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:1998-09-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.4.916-920.1995
更新日期:1995-02-01 00:00:00
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journal_title:Journal of bacteriology
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.3.578-585.1998
更新日期:1998-02-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.136.2.723-729.1978
更新日期:1978-11-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.122.2.454-463.1975
更新日期:1975-05-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.82.4.505-510.1961
更新日期:1961-10-01 00:00:00
abstract:UNLABELLED:Succinic semialdehyde (SSA), an important metabolite of γ-aminobutyric acid (GABA), is a ligand of the repressor AttJ regulating the expression of the attJ-attKLM gene cluster in the plant pathogen Agrobacterium tumefaciens. While the response of A. tumefaciens to GABA and the function of attKLM have been ex...
journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:2016-01-11 00:00:00