AllPrep RNA/DNA Extraction Protocol TASC Joanna Liliental 1/30/2012 DNA THE FLOW THROUGH IS RNA The membrane binds gDNA. RNA BEFORE STARTING: i. ii. iii. Add 10ul beta mercaptoethanol to 1ml RLT Plus Buffer. (can store at RT for up to 1 month). Add 4 vol of EtOH to Buffer RPE. Label tubes. AllPrep RNA/DNA Extraction Protocol TASC Joanna Liliental 1/30/2012 1. 2. 3. 4. 5. 6. Add 350ul (up to 1x106 cells) to the cell pellet. Pipet up and down and leave on ice for 5-10 min. Centrifuge lysate for 3 min at max speed. Transfer supe to DNA SPIN COLUMN placed in a 2ml collection tube. Close lid gently Centrufuge 30sec @ 10,000rpm. FLOW THROUGH use for RNA purification 7. Place DNA SPIN COLUMN in a new 2ml collection tube. 8. Store at RT or +4C for later DNA purification. (NO FREEZING!!!) or PROCEED WITH gDNA PROTOCOL.. RNA 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Add 1 volume of 70% EtOH to flow-through form #7 above. Mix well by pipetting. Proceed immediately to next step. Transfer sample (up to 700ul), including any ppt, to an RNeasy SPIN COLUMN placed in a 2 ml collection tube. Centrifuge for 15 sec @10,000rpm. Discard flow-through. Add 700ul Buffer RW1 to RNeasy SPIN COLUMN. Close lid. Centrifuge for 15 sec @ 10,000rpm. Discard flow-thorough. Add 500ul Buffer RPE to RNeasy SPIN COLUMN. Close lid. Centrifuge for 15 sec @ 10,000rpm. Discard flow-through. Add 500ul Buffer RPE to Rneasy SPIN COLUMN. Close lid. Centrifuge 2 min @ 10,000rpm Place Rneasy SPIN COLUMN in a new 2 ml collection tube. Centrifuge 1 min @10,000 rpm to dry the membrane. Place RNeasy SPIN COLUMN in a new 1.5 ml collection tube. Add 30-50ul RNAse – free H2O. Close the lid. Centrifuge 1 min @ 10,000 rpm to elute RNA AllPrep RNA/DNA Extraction Protocol TASC Joanna Liliental 1/30/2012 gDNA 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Add 500ul Buffer AW1 to DNA SPIN COLUMN (ina 2ml collection tube). Close lid. Centrifuge for 15 sec @ 10,000 rpm to WASH membrane. Discard flow-through. Add 500ul Buffer AW2 to DNA SPIN COLUMN. Close lid. Centrifuge 2 min @ 10,000 rpm to WASH membrane. Place SPIN COLUMN in a new 1.5ml collection tube. Add 100ul Buffer EB directly to the spin column membrane. Close lid. Incubate at RT 1min. Centrifuge 1 min @ 10,000 rpm to ELUTE gDNA.