Plasmids and modified strains of Vibrio cholerae, their preparation and derived vaccines

Plasmids and modified strains of Vibrio cholerae are prepared which are a genetically stable nontoxinogenic form of Vibrio cholerae which has a deletion mutation in both copies of the A1-peptide-encoding gene, resulting in the loss of a gene sequence required for expression of a toxic A1 peptide. Th...

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Bibliographic Details
Main Author MEKALANOS, JOHN J
Format Patent
LanguageEnglish
French
German
Published 14.11.1984
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PROCESSES USING MICROORGANISMS
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Summary:Plasmids and modified strains of Vibrio cholerae are prepared which are a genetically stable nontoxinogenic form of Vibrio cholerae which has a deletion mutation in both copies of the A1-peptide-encoding gene, resulting in the loss of a gene sequence required for expression of a toxic A1 peptide. The modified strains are useful as live or dead oral vaccines.
Bibliography:Application Number: EP19840870058