Method of detecting gene expression

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435 34, 435 6, C12Q 102, C12Q 104, C12Q 168

Patent

active

055716881

ABSTRACT:
A reporter system relating to in vivo expression technology was devised to aid in the identification and study of genes that display temporal or spatial patterns of expression during infection of host tissues. The method of this invention comprises constructing a strain or pool of strains of a microorganism which contains an artificial cointegrate comprising a reporter gene flanked by direct repeats of sequences to which a resolvase enzyme binds, thus catalyzing excision of the reporter gene, and further contains a coding sequence under the control of a promoter sequence which encodes transcripts, the expression of which are easily monitored in vitro and which result in a permanent genetic change, excision of the reporter gene, that is heritable and easily detectable subsequent to induction of the synthetic operon.

REFERENCES:
Barinaga, "New Technique Offers a Window on Bacteria's Secret Weapons", Science, Vol. 259, p. 595.
Mahan et al., "Selection of Bacterial Virulence Genes that are Specifically Induced in Host Tissues", Science, vol. 259, pp. 686-688.
Mekalanos, "Environmental Signals Controlling Expression of Virulence Determinants in Bacteria", Journal of Bacteriology, vol. 174, No. 1, pp. 1-7.
Fields et al., "Mutants of Salmonella typhimurium that Cannot Survive Within the Macrophage are Avirulent", Proceedings of the National Academy of Sciences USA, vol. 83, pp. 5189-5193.
Knapp et al., "Two trans-Acting Regulatory Genes (vir and mod) Control Antigenic Modulation in Bordetella pertussis", Journal of Bacteriology, vol. 170, No. 11, pp. 5059-5066.
Miller et al., "A Novel Suicide Vector and Its Use in Construction of Insertion Mutations: Osmoregulation of Outer Membrane Proteins and Virulence Determinants in vibrio cholerae Requires toxR", Journal of Bacteriology, vol. 170, No. 6, pp. 25275-2.
Isberg et al., "A Single Genetic Locus Encoded by Yersinia pseudotuberculosis Permits Invasion of Cultured Animal cells by Escherichia coli K-12", Nature, vol. 317, pp. 262-264.
Osbourn et al., "Identification of Plant-Induced Genes of the Bacterial Pathogen Xanthomonas campestris Pathovar campestris Using a Promoter-Probe Plasmid", EMBO Journal, vol. 6, No. 1, pp. 23-28.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of detecting gene expression does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting gene expression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting gene expression will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2014318

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.