A transcriptional pause synchronizes translation with transcription in the tryptophanase operon leader region

被引:27
作者
Gong, F [1 ]
Yanofsky, C [1 ]
机构
[1] Stanford Univ, Dept Biol Sci, Stanford, CA 94305 USA
关键词
D O I
10.1128/JB.185.21.6472-6476.2003
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Regulation of transcription of the tryptophanase operon requires that translation of its leader peptide coding region, tnaC, be coupled with its transcription. We show in vitro that a transcription pause site exists at the end of the tnaC coding region and that translation of tnaC releases the paused transcription complex, coupling transcription with translation.
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页码:6472 / 6476
页数:5
相关论文
共 20 条
[1]   NUCLEOTIDE-SEQUENCE OF THE STRUCTURAL GENE FOR TRYPTOPHANASE OF ESCHERICHIA-COLI K-12 [J].
DEELEY, MC ;
YANOFSKY, C .
JOURNAL OF BACTERIOLOGY, 1981, 147 (03) :787-796
[2]   Isolation of an Escherichia coli strain mutant unable to form biofilm on polystyrene and to adhere to human pneumocyte cells:: involvement of tryptophanase [J].
Di Martino, P ;
Merieau, A ;
Phillips, R ;
Orange, N ;
Hulen, C .
CANADIAN JOURNAL OF MICROBIOLOGY, 2002, 48 (02) :132-137
[3]   TRANSFER RNATRP TRANSLATION OF LEADER PEPTIDE CODON-12 AND OTHER FACTORS THAT REGULATE EXPRESSION OF THE TRYPTOPHANASE OPERON [J].
GOLLNICK, P ;
YANOFSKY, C .
JOURNAL OF BACTERIOLOGY, 1990, 172 (06) :3100-3107
[4]   Instruction of translating ribosome by nascent peptide [J].
Gong, F ;
Yanofsky, C .
SCIENCE, 2002, 297 (5588) :1864-1867
[5]   Analysis of tryptophanase operon expression in vitro -: Accumulation of TnaC-peptidyl-tRNA in a release factor 2-depleted S-30 extract prevents Rho factor action, simulating induction [J].
Gong, F ;
Yanofsky, C .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2002, 277 (19) :17095-17100
[6]   Reproducing tna operon regulation in vitro in an S-30 system -: Tryptophan induction inhibits cleavage of TnaC peptidyl-RNA? [J].
Gong, F ;
Yanofsky, C .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2001, 276 (03) :1974-1983
[7]   The mechanism of tryptophan induction of tryptophanase operon expression:: Tryptophan inhibits release factor-mediated cleavage of TnaC-peptidyl-tRNAPro [J].
Gong, F ;
Ito, K ;
Nakamura, Y ;
Yanofsky, C .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (16) :8997-9001
[8]  
Hopkins FG, 1903, J PHYSIOL-LONDON, V29, P451
[9]   Rho-dependent transcription termination in the tna operon of Escherichia coli:: Roles of the boxA sequence and the rut site [J].
Konan, KV ;
Yanofsky, C .
JOURNAL OF BACTERIOLOGY, 2000, 182 (14) :3981-3988
[10]   TRANSLATION ACTIVATES THE PAUSED TRANSCRIPTION COMPLEX AND RESTORES TRANSCRIPTION OF THE TRP OPERON LEADER REGION [J].
LANDICK, R ;
CAREY, J ;
YANOFSKY, C .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1985, 82 (14) :4663-4667