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J Clin Microbiol. 1985 December; 22(6): 1040-1044

Method for the isolation of highly purified Salmonella flagellins.

G F Ibrahim, G H Fleet, M J Lyons and R A Walker

ABSTRACT

Ten different Salmonella serotypes were grown in a chemically defined medium supplemented with 0.01% yeast extract. After sedimentation of the cells by centrifugation, flagella were detached by exposure to pH 2 for 30 min at room temperature. The flagellaless cells were removed by centrifugation, and the flagellin in the supernatant was further purified by high-speed centrifugation, ammonium sulfate precipitation, and dialysis in 50,000-molecular-weight-cutoff tubing. The 10 flagellin preparations were of a high degree of purity, as demonstrated by electron microscopy, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and measurement of salmonella H and O agglutination titers of antisera raised in rabbits with the flagellin preparations as immunogens.


J Clin Microbiol. 1985 December; 22(6): 1040-1044




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Antimicrob. Agents Chemother. Clin. Microbiol. Rev.
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Copyright © 1985 by the American Society for Microbiology. All rights reserved.