Induction of Escherichia coli chromosomal mazEF by stressful conditions causes an irreversible loss of viability

被引:77
作者
Kolodkin-Gal, I [1 ]
Engelberg-Kulka, H [1 ]
机构
[1] Hebrew Univ Jerusalem, Hadassah Med Sch, Dept Mol Biol, IL-91120 Jerusalem, Israel
关键词
D O I
10.1128/JB.188.9.3420-3423.2006
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
mazEF is a stress-induced toxin-antitoxin module located on the chromosomes of many bacteria. Here we induced Escherichia coli chromosomal mazEF by various stressful conditions. We found an irreversible loss of viability, which is the basic characteristic of cell death. These results further support our previous conclusion that E. coli mazEF mediation of cell death is not a passive process, but an active and genetically "programmed" death response.
引用
收藏
页码:3420 / 3423
页数:4
相关论文
共 40 条
[1]   Thymine metabolism and thymineless death in prokaryotes and eukaryotes [J].
Ahmad, SI ;
Kirk, SH ;
Eisenstark, A .
ANNUAL REVIEW OF MICROBIOLOGY, 1998, 52 :591-625
[2]   An Escherichia coli chromosomal ''addiction module'' regulated by 3',5'-bispyrophosphate: A model for programmed bacterial cell death [J].
Aizenman, E ;
EngelbergKulka, H ;
Glaser, G .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1996, 93 (12) :6059-6063
[3]   MazF-mediated cell death in Escherichia coli:: a point of no return [J].
Amitai, S ;
Yassin, Y ;
Engelberg-Kulka, H .
JOURNAL OF BACTERIOLOGY, 2004, 186 (24) :8295-8300
[4]   SEQUENCE OF THE RELB TRANSCRIPTION UNIT FROM ESCHERICHIA-COLI AND IDENTIFICATION OF THE RELB GENE [J].
BECH, FW ;
JORGENSEN, ST ;
DIDERICHSEN, B ;
KARLSTROM, OH .
EMBO JOURNAL, 1985, 4 (04) :1059-1066
[5]   ISOLATION AND STRUCTURE OF AN INTRASTRAND CROSS-LINK ADDUCT OF MITOMYCIN-C AND DNA [J].
BIZANEK, R ;
MCGUINNESS, BF ;
NAKANISHI, K ;
TOMASZ, M .
BIOCHEMISTRY, 1992, 31 (12) :3084-3091
[6]  
CASADABAN MJ, 1979, P NATL ACAD SCI USA, V76, P4530, DOI 10.1073/pnas.76.9.4530
[7]  
Cashel M., 1996, ESCHERICHIA COLI SAL, V1, P1458
[8]   The YefM antitoxin defines a family of natively unfolded proteins - Implications as a novel antibacterial target [J].
Cherny, I ;
Gazit, E .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2004, 279 (09) :8252-8261
[9]   Overproduction of the Lon protease triggers inhibition of translation in Escherichia coli:: involvement of the yefM-yoeB toxin-antitoxin system [J].
Christensen, SK ;
Maenhaut-Michel, G ;
Mine, N ;
Gottesman, S ;
Gerdes, K ;
Van Melderen, L .
MOLECULAR MICROBIOLOGY, 2004, 51 (06) :1705-1717
[10]   Toxin-antitoxin loci as stress-response-elements: ChpAK/MazF and ChpBK cleave translated RNAs and are counteracted by tmRNA [J].
Christensen, SK ;
Pedersen, K ;
Hansen, FG ;
Gerdes, K .
JOURNAL OF MOLECULAR BIOLOGY, 2003, 332 (04) :809-819