DNA extraction procedure
Lysis1. V tubes obemom 1,5-2 mL place issleduemye samples.2. V sluchae khraneniya obraztsov v fiziologicheskom rastvore tsentrifugirovat samples v techenie 5 minut pri 13 tys. ob/min, posle chego polnostyu udalit supernatant.3. Add k obraztsam 200 uL liziruyushchego bufera 1, 30 uL Proteinazy K, mix thoroughly on a vortex mixer.Optsionalno: vozmozhno ispolzovanie RNAazy A lyubogo proizvoditelya v kontsentratsiyakh, rekomendovannykh proizvoditelem. 4. Incubate samples v termostate pri 56℃ v techenie 2-5 chasov, periodicheski vstryakhivaya.5. Centrifuge samples v techenie 5 minut pri 13 tys. ob/min., posle chego perenesti 200 uL supernatanta v novye tubes obemom 1,5-2 mL. 6. Vnesti 200 uL liziruyushchego bufera 2, peremeshat tubes on a vortex mixer i sbrosit kapli s pomoshchyu brief centrifugation.Sorbtsiya NA1. Add k smesi 200 uL svyazyvayushchego bufera i 50 uL magnitnykh chastits, mix thoroughly tubes on a vortex mixer.2. Incubate v techenie 3-5 minut at room temperature, periodicheski vstryakhivaya.3. Sbrosit kapli s pomoshchyu brief centrifugation.4. Ustanovit tubes na magnitnyy shtativ i inkubirovat v techenie 3-5 minut.5. Akkuratno, ne zadevaya pellet, udalit supernatant.Nucleic acid washing1. Add v tubes 700 uL promyvochnogo bufera 1, mix thoroughly tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.2. Incubate na magnitnom shtative v techenie 1-2 minut.3. Akkuratno, ne zadevaya chastitsy, udalit supernatant.4. Add v tubes 700 uL promyvochnogo bufera 2, mix thoroughly tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.5. Incubate na magnitnom shtative v techenie 1-2 minut.6. Akkuratno, ne zadevaya chastitsy, udalit supernatant.7. Repeat punkty 4-6.8. Vysushit samples s otkrytymi kryshkami v termostate pri 56-60℃ ili at room temperature until complete ispareniya promyvochnogo rastvora.Nucleic acid elution1. Add v tubes 50-100 uL elyuiruyushchego bufera.2. Incubate v termostate pri 56-60℃ v techenie 5 minut, periodicheski peremeshivaya on a vortex mixer.3. Sbrosit kapli s pomoshchyu brief centrifugation.4. Incubate na magnitnom shtative v techenie 1-2 minut.5. Perenesti elyuat v novye tubes obemom 1,5-2 mL.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 na A260/A280 purity of the resulting solution DNA sootvetstvuyut ≥1,7.
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