DNA extraction procedure
Lysis 1. V tubes obemom 1,5-2 mL place 50 mg izmelchennykh issleduemykh prob.
2. Add k obraztsam 400 uL liziruyushchego bufera i 20 uL Proteinazy K.3. Intensivno peremeshat tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.4. Incubate tubes v termostate pri 56℃ v techenie 1-2 ch, periodicheski peremeshivaya.5. Sbrosit kapli s pomoshchyu brief centrifugation.6. Pomestit tubes na led ili v kholodnyy shtativ i inkubirovat v techenie 3 minut. V sluchae otsutstviya okhladitelnykh elementov inkubirovat at room temperature v techenie 10 min until completely cooled smesi.Sorbtsiya NA1. Add k smesi 350 uL osazhdayushchego bufera.2. Intensivno peremeshat tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.3. Incubate at room temperature v techenie 5 minut, periodicheski peremeshivaya.4. Centrifuge tubes v techenie 5 minut pri maks. ob/min.5. Akkuratno, ne zadevaya pellet, perenesti supernatant v novye 1,5-2 mL tubes.6. Repeat punkty 4-5.7. Add v tubes 240 uL svyazyvayushchego bufera i 50 uL magnitnykh chastits, mix thoroughly tubes on a vortex mixer.8. Incubate at room temperature v techenie 5 minut, periodicheski peremeshivaya.9. Sbrosit kapli s pomoshchyu brief centrifugation.10. Incubate na magnitnom shtative v techenie 5 minut.11. Akkuratno, ne zadevaya chastitsy, udalit supernatant.Nucleic acid washing1. Add v tubes 500 uL promyvochnogo bufera 1.2. Intensivno peremeshat tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.3. Incubate tubes na magnitnom shtative v techenie 2 minut. Akkuratno, ne zadevaya chastitsy, udalit supernatant.4. Add v tubes 500 uL promyvochnogo bufera 2.5. Repeat punkty 2-3.6. Add v tubes 500 uL promyvochnogo bufera 3.7. Intensivno peremeshat tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.8. Incubate tubes na magnitnom shtative v techenie 2 minut. Akkuratno, ne zadevaya pellet chastits, udalit supernatant.9. Repeat punkty 6-8.10. Add v tubes 500 uL promyvochnogo bufera 4.11. Repeat punkty 7-8.12. Vysushit samples s otkrytymi kryshkami v termostate pri temperature 56-60℃ v techenie 5-10 minut until complete ispareniya promyvochnogo rastvora.Nucleic acid elution1. Add v tubes 25-50 uL elyuiruyushchego bufera.2. Intensivno peremeshat on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.3. Incubate v termostate pri temperature 56-60℃ v techenie 10 minut, periodicheski peremeshivaya. 4. Sbrosit kapli s pomoshchyu brief centrifugation.5. Incubate tubes na magnitnom shtative v techenie 3-5 minut.6. Akkuratno, ne zadevaya chastitsy, perenesti elyuat v novye tubes.Optsionalno: rekomenduetsya provesti dopolnitelnoe tsentrifugirovanie elyuata na maksimalnoy skorosti dlya udaleniya ostatochnogo kolichestva magnitnykh chastits. Poluchennye rastvory nucleic acids can be stored do 7 dney pri temperature ot +2℃ do +4℃ i do dvukh let pri temperature -20℃. Po absorbance ratio A260/A280 purity of the resulting solution DNA sootvetstvuyut ≥1,7.
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