ISOLATION OF NUCLEIC ACIDS

Methods of isolating nucleic acids comprising DNA from biological material are disclosed. The methods comprise a lysis step using an aqueous composition which comprises lithium at a concentration of 0.05 to 1.0M, a chelating agent, and a surfactant to produce a lysed composition. The lysed compositi...

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Bibliographische Detailangaben
Hauptverfasser: Minter, Stephen John, Patsos, Georgios
Format: Patent
Sprache:hrv ; eng
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Beschreibung
Zusammenfassung:Methods of isolating nucleic acids comprising DNA from biological material are disclosed. The methods comprise a lysis step using an aqueous composition which comprises lithium at a concentration of 0.05 to 1.0M, a chelating agent, and a surfactant to produce a lysed composition. The lysed composition is treated with a solid support that is capable of immobilising DNA in the presence of a dissolved chaotropic agent at a concentration of 0.05 to 2M and 25% to 60% by volume of a C1-3 alkanol. The support is then washed with a first wash solution containing lithium dissolved in a C1-3 alkanol. Subsequently, the support is washed with a liquid comprising at least 80% by volume of a C1-3 alkanol. The nucleic acid comprising DNA is then eluted from the support.