Microarray analysis of temperature-induced transcriptome of Yersinia pestis.
Yersinia pestis, the etiologic agent of plague, must acclimatize itself to temperature shifts between the temperature (26 C) for flea blockage and the body temperature (37 C) of warm-blooded hosts during its life cycle. Here a whole-genome DNA microarray was used to investigate transcriptional regulation upon the upshift of growth temperature from 26 to 37 C in a chemically defined medium. Four hundred and one genes were regulated differentially under the two temperatures. About 39% of these genes were up-regulated at 37 C, whereas 61% were down-regulated. Temperature-induced changes occurred at the level of transcription of genes encoding proven or predicted virulence factors, regulators, metabolism-associated proteins, prophages, and hypothetical proteins. Strikingly, many gene clusters displayed a co-transcription pattern in response to temperature upshift. Our data provided a genome-wide profile of gene transcription induced by temperature shift and should shed light on the pathogenicity and host-microbe interaction of this deadly pathogen.
Han
Yanping
Y
Laboratory of Analytical Microbiology, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China.
Zhou
Dongsheng
D
Pang
Xin
X
Song
Yajun
Y
Zhang
Ling
L
Bao
Jingyue
J
Tong
Zongzhong
Z
Wang
Jin
J
Guo
Zhaobiao
Z
Zhai
Junhui
J
Du
Zongmin
Z
Wang
Xiaoyi
X
Zhang
Xiuqing
X
Wang
Jian
J
Huang
Peitang
P
Yang
Ruifu
R
D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D015964:Gene Expression Regulation, Bacterial; D016680:Genome, Bacterial; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D020543:Proteome; D005423:Siphonaptera; D013696:Temperature; D014158:Transcription, Genetic; D015010:Yersinia pestis / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism
D001426:Bacterial Proteins; D020543:Proteome