Analysis of expression of flagella by Salmonella enterica serotype Typhimurium by monoclonal antibodies recognising both phase specific and common epitopes
Sojka, M., Sayers, A. R. and Woodward, M. J. (2001) Analysis of expression of flagella by Salmonella enterica serotype Typhimurium by monoclonal antibodies recognising both phase specific and common epitopes. Veterinary Microbiology, 78 (1). pp. 61-77. ISSN 0378-1135
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To link to this article DOI: 10.1016/s0378-1135(00)00291-1
Monoclonal antibodies specific for phase 1 ("i" antigen), phase 2 ("1,2" antigen) and common epitopes of the flagellins of Salmonella enterica serotype Typhimurium were raised. Having confirmed their specificity, the monoclonal antibodies were used to develop semi-quantitative ELISAs in order to assess the relative expression of the two phases by strains of Typhimurium. The majority of Typhimurium strains representative of a wide cross-section of definitive types from animal and environmental sources preferentially expressed phase 1 antigen in vitro. DT40 strains were unique in expressing phase 2 preferentially. The ratio of phase 1 to phase 2 expressed by strains tended to be constant for any one strain when strains were grown on a number of conventional laboratory media. However, the ratio of phases was shown to be modulated by incubation at 42 degreesC and buffering media at pH values, notably 4.5, other than neutral. Selenite broth and Rambach media repressed flagellation. Crown Copyright (C) 2001 Published by Elsevier Science B.V. All rights reserved.
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