Identification of essential genes in prokaryotes

C - Chemistry – Metallurgy – 12 – N

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Details

C12N 15/11 (2006.01) A61K 31/7088 (2006.01) C07K 14/195 (2006.01) C07K 14/21 (2006.01) C07K 14/255 (2006.01) C07K 14/26 (2006.01) C07K 14/31 (2006.01) C07K 14/315 (2006.01) C07K 16/12 (2006.01) C12N 15/10 (2006.01) C12N 15/31 (2006.01) C12Q 1/68 (2006.01) A61K 48/00 (2006.01)

Patent

CA 2404260

The sequences of antisense nucleic acids which inhibit the proliferation of prokaryotes are disclosed. Cell-based assays which employ the antisense nucleic acids to identify and develop antibiotics are also disclosed. The antisense nucleic acids can also be used to identify proteins required for proliferation, express these proteins or portions thereof, obtain antibodies capable of specifically binding to the expressed proteins, and to use those expressed proteins as a screen to isolate candidate molecules for rational drug discovery programs. The nucleic acids can also be used to screen for homologous nucleic acids that are required for proliferation in cells other than Staphylococcus aureus, Salmonella typhimurium, Klebsiella pneumoniae, and Pseudomonas aeruginosa. The nucleic acids of the present invention can also be used in various assay systems to screen for proliferation required genes in other organisms.

L'invention se rapporte aux séquences d'acides nucléiques antisens inhibant la prolifération de procaryotes. Elle concerne également des dosages cellulaires utilisant des acides nucléiques antisens pour identifier et mettre au point des antibiotiques. Les acides nucléiques antisens peuvent être utilisés pour identifier des protéines nécessaires pour cette prolifération, exprimer ces protéines ou une partie de ces protéines, obtenir des anticorps pouvant se lier spécifiquement aux protéines exprimées, et utiliser ces protéines exprimées comme crible pour isoler des molécules candidates destinées à des programmes rationnels de mise au point de médicaments. Les acides nucléiques de l'invention peuvent également être utilisés pour effectuer un criblage visant à identifier des acides nucléiques homologues nécessaires pour la prolifération dans des cellules autres que Staphylococcus aureus, Salmonella typhimurium, Klebsiella pneumoniae et Pseudomonas aeruginosa. Les acides nucléiques de l'invention peuvent en outre être utilisés dans divers systèmes de dosage destinés au criblage de gènes nécessaires pour la prolifération dans d'autres organismes.

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