Automated nucleic acid extractor

An automated apparatus is provided which implements a new method of extracting and purifying nucleic acids from cells without the use of centrifugation. In the method, a lysate is created by treating the cells with proteinase K in the presence of a lysis buffer having a high concentration of a salt....

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MAYRAND, P. ERIC, NORDMAN, ERIC S, CATHCART, GUY RICHARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMBINATORIAL CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA DERIVATIVES THEREOF ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICOLIBRARIES METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING NUCLEIC ACIDS NUCLEOSIDES NUCLEOTIDES ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS SUGARS THEIR RELEVANT APPARATUS TRANSPORTING VINEGAR WINE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An automated apparatus is provided which implements a new method of extracting and purifying nucleic acids from cells without the use of centrifugation. In the method, a lysate is created by treating the cells with proteinase K in the presence of a lysis buffer having a high concentration of a salt. The lysate is mixed with a phenol-based solvent system, thereby creating an emulsion. The emulsion is heated to promote phase separation. Similarly, the rate of phase separation is also enhanced by increasing the surface area of the emulson. Once the phase separation is complete, the lower organic phase is removed and the upper aqueous phase is repeatedly extracted with the phenol-based solvent a preselected number of times, and is finally extracted using chloroform. The remaining aqueous phase is then dialyzed to further purify and concentrate the nucleic acid solution. Two preferred embodiments of apparatus are presented to accomplish this extraction.