Small RNAs and bacterial strains involved in quorum sensing

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

Reexamination Certificate

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Reexamination Certificate

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07405050

ABSTRACT:
Quorum-sensing bacteria communicate with extracellular signal molecules called autoinducers to allow community-wide synchronization of gene expression. The present invention relates to the identification theVibrio harveyiandVibrio choleraeprotein Hfq as mediating interactions between small, regulatory RNAs (sRNAs) and specific messenger RNA (mRNA) targets. Accordingly, the present invention provides nucleic acids encoding theVibriosRNAs, strains having various deletions and mutations of one or more qrr genes encoding these sRNA as well as methods of identifying quorum-sensing regulators. Additionally, the invention relates to an isolatedV. harveyiHfq protein and conservative amino acid substitutions thereof as well as nucleic acids encoding those proteins, recombinant methods of producing those proteins and antibodies against those proteins.

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