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. 1989 Feb;57(2):649–652. doi: 10.1128/iai.57.2.649-652.1989

Citrobacter freundii produces an 18-amino-acid heat-stable enterotoxin identical to the 18-amino-acid Escherichia coli heat-stable enterotoxin (ST Ia).

A Guarino 1, R Giannella 1, M R Thompson 1
PMCID: PMC313149  PMID: 2912902

Abstract

We purified and sequenced the heat-stable enterotoxin produced by Citrobacter freundii. The toxin was detected during purification by reaction with monoclonal antibody to Escherichia coli heat-stable enterotoxin. The C. freundii toxin amino acid sequence was identical to that of the 18-amino-acid heat-stable enterotoxin (STa) produced by toxigenic E. coli.

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Selected References

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