Degp protease: cleavage site identification and proteolysis...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 7/08 (2006.01) A61K 38/08 (2006.01) A61K 38/10 (2006.01) C07K 7/06 (2006.01) C07K 14/245 (2006.01) C12Q 1/37 (2006.01) G01N 33/573 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2465265

The DegP protease is essential for clearance of denatured or aggregated proteins from the periplasmic space in bacteria. The present invention relates to novel methods for treatment and/or prophylaxis of diseases caused by pilus- forming bacteria by modulating DegP protease activity. Also disclosed is the identification of DegP cleavage sites on PapA pilin subunit and methods for identifying substances which modulate DegP activity. The present invention further provides for polypeptides identified which are cleavable substrates for DegP. The present invention provides for the identification of a polypeptide which enhances DegP protease activity. The current invention facilitates the development of a novel class of anti-infectives targeting DegP protease.

La protéase DegP est nécessaire à l'évacuation des protéines dénaturées ou agrégées de l'espace périplasmique situé à l'intérieur des bactéries. La présente invention a trait à de nouvelles méthodes de traitement et/ou de prophylaxie de maladies causées par les bactéries formant un pilus, faisant appel à la modulation de l'activité de la protéase DegP. L'invention concerne également l'identification de sites de clivage de DegP sur une sous-unité piline de PapA, ainsi que des procédés d'identification de substances qui modulent l'activité de DegP. La présente invention se rapporte aussi à des polypeptides identifiés, qui sont des substrats clivables pour DegP. La présente invention a trait à l'identification d'un polypeptide qui augmente l'activité de la protéase DegP. La présente invention facilite la mise au point d'une nouvelle classe d'anti-infectieux ciblant la protéase DegP.

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