Proteomic characterization of Yersinia pestis virulence

被引:57
作者
Chromy, BA [1 ]
Choi, MW [1 ]
Murphy, GA [1 ]
Gonzales, AD [1 ]
Corzett, CH [1 ]
Chang, BC [1 ]
Fitch, JP [1 ]
McCutchen-Maloney, SL [1 ]
机构
[1] Lawrence Livermore Natl Lab, Biosci Directorate, Livermore, CA 94550 USA
关键词
D O I
10.1128/JB.187.23.8172-8180.2005
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The Yersinia pestis proteome was studied as a function of temperature and calcium by two-dimensional differential gel electrophoresis. Over 4,100 individual protein spots were detected, of which hundreds were differentially expressed. A total of 43 differentially expressed protein spots, representing 24 unique proteins, were identified by mass spectrometry. Differences in expression were observed for several virulence-associated factors, including catalase-peroxidase (KatY), murine toxin (Ymt), plasminogen activator (Pla), and F1 capsule antigen (Cafl), as well as several putative virulence factors and membrane-bound and metabolic proteins. Differentially expressed proteins not previously reported to contribute to virulence are candidates for more detailed mechanistic studies, representing potential new virulence determinants.
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收藏
页码:8172 / 8180
页数:9
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