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PMID: 8389476 Published · ppublish English Comparative Study Journal Article Research Support, U.S. Gov't, P.H.S.

Accessory cholera enterotoxin (Ace), the third toxin of a Vibrio cholerae virulence cassette.

Trucksis M, Galen JE, Michalski J, Fasano A, Kaper JB

Abstract

Vibrio cholerae causes the potentially lethal disease cholera through the elaboration of the intestinal secretogen cholera toxin. A second toxin of V. cholerae, Zot, decreases intestinal tissue resistance by modifying intercellular tight junctions. In this report, a third toxin of V. cholerae, Ace (accessory cholera enterotoxin), is described. Ace increases short-circuit current in Ussing chambers and causes fluid secretion in ligated rabbit ileal loops. The predicted protein sequence of Ace shows striking similarity to eukaryotic ion-transporting ATPases, including the product of the cystic fibrosis gene. The gene encoding Ace is located immediately upstream of the genes encoding Zot and cholera toxin. The ctx, zot, and ace genes, which are located on a dynamic sector of the chromosome, comprise a V. cholerae "virulence cassette."

Related Genes
MeSH Terms
Amino Acid Sequence Animals Base Sequence Cholera Toxin/genetics,isolation & purification,toxicity DNA Transposable Elements Genes, Bacterial Ileum/drug effects Molecular Sequence Data Muscle, Smooth/drug effects Oligodeoxyribonucleotides Plasmids Polymerase Chain Reaction Protein Structure, Secondary Rabbits Restriction Mapping Sequence Homology, Amino Acid Vibrio cholerae/genetics,pathogenicity Virulence/genetics
Chemicals
Ace toxin DNA Transposable Elements Oligodeoxyribonucleotides Cholera Toxin
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Trucksis M
Department of Medicine, University of Maryland School of Medicine, Baltimore.
Galen J E
Michalski J
Fasano A
Kaper J B
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28 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1993-06-01
Pages
5267-71
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC46697
Subset
IM
Grants
NIAID NIH HHS · AI07376 · United States
NIAID NIH HHS · AI19716 · United States
Databases
GENBANK
Z22569
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