DNA extraction procedure
Lysis- V tubes obemom 1,5-2 mL place issleduemye samples.
- V sluchae khraneniya obraztsov v fiziologicheskom rastvore neobkhodimo tsentrifugirovat samples v techenie 5 minut pri 13 000 ob/min, posle chego polnostyu udalit supernatant. V sluchae khraneniya biomateriala v etilovom spirte samples neobkhodimo vymachivat v vode ne menee 30 minut. Zatem tsentrifugirovat samples v techenie 5 minut pri 13 000 ob/min, posle chego polnostyu udalit supernatant.
- Add k obraztsam 400 uL liziruyushchego bufera i 30 uL Proteinazy K, peremeshat, sbrosit kapli s pomoshchyu brief centrifugation.
- Incubate samples v termostate pri 60℃ ne menee 3-x chasov. Rekomenduetsya inkubirovat samples v techenie nochi dlya bolee polnogo lizisa tkani i bolshego vykhoda NA.
- Add k obraztsam 300 uL svyazyvayushchego bufera i tsentrifugirovat samples pri maks. ob/min v techenie 3 minut. Posle chego akkuratno perenesti maksimalnyy obem supernatanta, ne zadevaya pellet tkani, v novye tubes obemom 1,5-2 mL.
- Add k obraztsam 5 uL RNAazy A, akkuratno peremeshat, sbrosit kapli s pomoshchyu brief centrifugation.
- Incubate samples v techenie 15 minut at room temperature.
Sorbtsiya NA- Add v tubes 300 uL svyazyvayushchego bufera i 100 uL magnitnykh chastits, peremeshat.
- Incubate samples v techenie 5 minut at room temperature, periodicheski peremeshivaya.
- Sbrosit kapli s pomoshchyu brief centrifugation.
- Incubate samples na magnitnom shtative v techenie 2 minut. Akkuratno udalit supernatant, ne zadevaya pellet magnitnykh chastits.
Nucleic acid washing1. Add 600 uL promyvochnogo bufera 1.
2. Intensivno peremeshat tubes on a vortex mixer, sbrosit kapli s pomoshchyu brief centrifugation.
3. Incubate samples na magnitnom shtative v techenie 1 minuty, posle chego akkuratno, ne zadevaya pellet chastits, udalit supernatant.
4. Add 600 uL promyvochnogo bufera 2.
5. Repeat punkty 2-3.
6. Add 600 uL promyvochnogo bufera 3.
7. Repeat punkty 2-3.
8. Vysushit samples s otkrytymi kryshkami v termostate pri 56-60℃ ili at room temperature until complete ispareniya promyvochnogo bufera 3.
Nucleic acid elution1. Add v tubes 50-100 uL elyuiruyushchego bufera, mix thoroughly tubes on a vortex mixer.
2. Incubate v termostate pri 60℃ v techenie 10 minut, periodicheski peremeshivaya.
3. Cbrosit kapli s pomoshchyu brief centrifugation.
4. Incubate samples na magnitnom shtative v techenie 3 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 bolee dlitelnoe vremya pri temperature -20℃.
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