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標題: Conversion of Shigella flexneri serotype 2a to serotype Y in a shigellosis patient due to a single amino acid substitution in the protein product of the bacterial glucosyltransferase gtrII gene
作者: Chen, J.H.
Hsu, W.B.
Chiou, C.S.
Chen, C.M.
關鍵字: serotype conversion;glucosyltransferase;Shigella flexneri;o-antigen modification;glucosyl transferase gene;molecular;characterization;polyacrylamide gels;bacteriophage-sfv;escherichia-coli;cloning
Project: Fems Microbiology Letters
期刊/報告no:: Fems Microbiology Letters, Volume 224, Issue 2, Page(s) 277-283.
Conversion of serotype from 2a to Y was demonstrated with five Shigella flexneri isolates recovered from an infected patient. When introduced into the serotype Y isolate, the glucosyltransferase (gtr) II gene of the serotype 2a isolate is capable of inducing the conversion from serotype Y to 2a. In contrast, the gtrII of the serotype Y isolate lacks the capacity to change serotype, resulting from a Cys --> Tyr substitution in its predicted protein sequence. The protein product of the gtrII gene was detected. This is the first report of serotype conversion of S. flexneri in humans, and successful detection of the protein product from a gtr gene. (C) 2003 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.
ISSN: 0378-1097
DOI: 10.1016/s0378-1097(03)00470-1
Appears in Collections:分子生物學研究所

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