Method for lysing mycobacteria

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/10 (2006.01) C07H 21/00 (2006.01) C12N 1/06 (2006.01) C12Q 1/04 (2006.01) C12Q 1/68 (2006.01) C12S 3/02 (2006.01)

Patent

CA 2067692

The invention provides a rapid method for lysing Mycobacteria. In one embodiment is provided a method for lysing Mycobacteria which comprises exposing the bacteria to a lysis effective amount of the enzyme achromopeptidase. The method of the invention is particularly advantageous since only one step is involved, it is expedient compared to prior methods, and little instrumentation is necessary. By practicing the present invention it is possible to lyse Mycobacteria with minimal effort. In addition, practicing the invention results in liberating cellular components including deoxyribonucleic acid (DNA) from Mycobacteria. Not only is DNA liberated, but the DNA is suited for subsequent analysis by way of probe hybridization, restriction enzyme analysis, and the like.

L'invention fournit une méthode rapide de lyse des mycobactéries. Une méthode dévoilée dans une réalisation consiste à exposer les bactéries à une quantité suffisante de l'enzyme achromopeptidase pour provoquer la lyse. Cette méthode est particulièrement avantageuse puisqu'elle ne comporte qu'une étape, que son exécution est rapide par rapport aux méthodes existantes et qu'elle ne nécessite que peu d'instruments. En utilisant l'invention, il est possible de lyser les mycobactéries presque sans effort. En outre, l'utilisation de la méthode se traduit par une libération des composantes cellulaires, y compris l'acide désoxyribonucléique (ADN) des mycobactéries. Non seulement l'ADN est-il libéré, il peut aussi être analysé par hybridation avec une sonde, à l'aide de l'enzyme de restriction et par d'autres techniques semblables.

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