Methods of extracting nucleic acids

C - Chemistry – Metallurgy – 12 – Q

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Details

C12Q 1/68 (2006.01) C07H 21/00 (2006.01) C12P 19/34 (2006.01)

Patent

CA 2642883

Methods and materials are disclosed for rapid and simple extraction and isolation of nucleic acids, particularly RNA, from a biological sample involving the use of an alkaline reagent followed by an acidic solution and a solid phase binding material that has the ability to liberate nucleic acids from biological samples, including whole blood, without first performing any preliminary lysis to disrupt cells or viruses. No detergents or chaotropic substances for lysing cells or viruses are needed or used. Viral, bacterial and mammalian genomic RNA can be obtained using the method of the invention. RNA obtained by the present method is suitable for use in downstream processes such as RT-PCR.

La présente invention concerne des méthodes et des matériaux pour l'extraction et l'isolement simples et rapides d'acides nucléiques, en particulier d'ARN, à partir d'un échantillon biologique, les méthodes et matériaux impliquant l'utilisation d'un réactif basique suivi d'une solution acide et d'un matériau de liaison en phase solide qui a la capacité d'extraire les acides nucléiques des échantillons biologiques, y compris le sang entier, sans qu'il soit nécessaire de pratiquer une lyse préliminaire pour dénaturer les cellules ou les virus. Aucun détergent ou substance chaotropique n'est nécessaire ou utilisé pour la lyse des cellules ou des virus. De l'ARN génomique viral, bactérien et mammifère peut être obtenu en utilisant la méthode selon l'invention. L'ARN obtenu par la présente méthode peut être employé dans des procédés en aval tels que la RT-PCR.

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