Heat-labile enterotoxins from Escherichia coli strains of human and porcine origins had identical subunit composition, arrangement, and size in sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Immunological differences recently described by others were shown to reside exclusively in the B subunits.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC347813 | PMC |
http://dx.doi.org/10.1128/iai.38.2.806-809.1982 | DOI Listing |
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