Bioinformatic method for identifying surface-anchored...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/31 (2006.01) G06F 19/10 (2011.01) A61K 39/02 (2006.01) A61K 39/395 (2006.01) A61P 31/04 (2006.01) A61P 37/04 (2006.01) C07K 14/195 (2006.01) C07K 14/31 (2006.01) C07K 16/12 (2006.01) C40B 30/02 (2006.01) G01N 33/564 (2006.01) G01N 33/569 (2006.01)

Patent

CA 2498784

A bioinformatic method is provided for identifying and isolating proteins with MSCRAMM®-like characteristics from Gram positive bacteria, such as Enterococcus, Staphylococcus, Streptococcus and Bacillus bacteria, which can then be utilized in methods to prevent and treat infections caused by Gram- positive bacteria. The method involves identifying from sequence information those proteins with a putative C-terminal LPXTG (SEQ ID NO:1) cell wall sorting signal and other structural similarities to MSCRAMM® proteins having the LPXTG-anchored cell wall proteins. The MSCRAMM® proteins and immunogenic regions therein that are identified and isolated using the present invention may be used to generate antibodies useful in the diagnosis, treatment or prevention of Gram positive bacterial infections.

L'invention concerne une procédé bio-informatique pour identifier et isoler les protéines avec des caractéristiques similaires à MSCRAMM?®¿ à partir de bactéries à Gram positif telles que <i>Enterococcus, Staphylococcus, Streptococcus </i>et <i>Bacillus</i>, qui peuvent ensuite servir dans des procédés visant la prévention et le traitement des infections causées par les bactéries à Gram positif. Le procédé consiste à identifier à partir des informations de séquence les protéines qui possèdent un signal estimé de tri membranaire C-terminal LPXTG (SEQ ID NO:1) et d'autres similarités avec les protéines MSCRAMM?®¿ possédant des protéines membranaires à ancrage LPXTG. Les protéines MSCRAMM® et les régions immunogéniques dans celles-ci, identifiées et isolées dans le cadre de la présente invention, peuvent s'utiliser pour générer des anticorps utiles dans le diagnostic, le traitement ou la prévention des infections bactériennes à Gram positif.

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