Antitoxin DinJ influences the general stress response through transcript stabilizer CspE.
Antitoxin DinJ influences the general stress response through transcript stabilizer CspE.
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DOI:
10.1111/j.1462-2920.2011.02618.x
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发表时间:
2012-03
影响因子:
5.1
通讯作者:
Wood TK
中科院分区:
文献类型:
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作者:
Hu Y;Benedik MJ;Wood TK
Antitoxins are becoming recognized as proteins that regulate more than their own synthesis; for example, we found previously that antitoxin MqsA of the Escherichia coli toxin/antitoxin (TA) pair MqsR/MqsA directly represses the gene encoding the stationary-phase sigma factor RpoS. Here, we investigated the physiological role of antitoxin DinJ of the YafQ/DinJ TA pair and found DinJ also affects the general stress response by decreasing RpoS levels. Corroborating the reduced RpoS levels upon producing DinJ, the RpoS-regulated phenotypes of catalase activity, cell adhesins and cyclic diguanylate decreased while swimming increased. Using a transcriptome search and DNA-binding assays, we determined that the mechanism by which DinJ reduces RpoS is by repressing cspE at the LexA palindrome; cold-shock protein CspE enhances translation of rpoS mRNA. Inactivation of CspE abolishes the ability of DinJ to influence RpoS. Hence, DinJ influences the general stress response indirectly by regulating cspE.
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DOI:
10.1007/978-1-60327-279-7_7
发表时间:
2010-01-01
期刊:
ANTIBIOTIC RESISTANCE PROTOCOLS, SECOND EDITION
影响因子:
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作者:
Macvanin, Mirjana;Hughes, Diarmaid
通讯作者:
Hughes, Diarmaid
影响因子:
5.1
作者:
Kim Y;Wang X;Zhang XS;Grigoriu S;Page R;Peti W;Wood TK
通讯作者:
Wood TK
影响因子:
3.2
作者:
Jorgensen, Mikkel G.;Pandey, Deo P.;Gerdes, Kenn
通讯作者:
Gerdes, Kenn
影响因子:
3.2
作者:
Barrios, AFG;Zuo, RJ;Wood, TK
通讯作者:
Wood, TK
影响因子:
9.9
作者:
通讯作者:
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