Properties of an Escherichia coli cytotoxin
- PMID: 208977
- PMCID: PMC421894
- DOI: 10.1128/iai.20.2.575-577.1978
Properties of an Escherichia coli cytotoxin
Abstract
Isoelectric focusing of a heat-labile cytotoxin of Escherichia coli H30 revealed the presence of two molecular variants, pI 7.2 and a comparatively small quantity of pI 6.8. Predominant component pI 7.2 had a molecular weight of 28,000, induced some fluid accumulation in rabbit ileal loops, and showed no morphological response in Y-1 cells but a strong cytotoxic effect on Vero cells.
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