Daniel:Notebook/ComboLock/2016-6-24: Difference between revisions

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'''PCR Gel Image'''
'''PCR Gel Image'''


[[Image:2016-06-24-CombolockTest-Stage2.jpg|500px]]
[[2016-06-24-CombolockTest-Stage2-FIXED.png|500px]]
 
I had to fix the lane annotations from the top annotations, which were the originals.  I forgot (see above) that I switched lanes 1 and 5, so that definitely isn't corrected on the gel.  Additionally, I believe that lanes 5-8 were put in the gel backwards (long story involving PCR machines).  So, fixing those you get the black box labeling, which I believe to be correct.  If that is correct, the 48 bp backbone padlock doesn't work, and it looks like the 68 works better than the 88 (qualitatively).  So in the future I'd recommend around a 20 bp spacer, as is used in the 68 bp backbone version.  Since I have results, I want to go ahead with size selection and sequencing.

Revision as of 20:22, 24 June 2016

Stage 2 Test (Started yesterday)

Back to Calendar

Protocol

  1. Latch and Padlock Hybridization
    1. Heat inactivate enzyme by incubating for 2 minutes at 94C
  2. Exonuclease Digestion
    1. Prepare exonuclease I/III mix by mixing 2 uL exonuclease I (20 units/μL) and 10 uL exonuclease III (100 units/μL) in 1:1 ratio
    2. Add 2 μL of exonuclease I/III mix to reaction
    3. Mix the reaction by swirling pipette around the well 5 times
    4. Incubate reaction at 37 ºC for 2 hours
    5. Heat inactivate enzyme by incubating at 94C for 5 minutes
  3. qPCR *this is actually PCR since the eppendorf thermocycler was down and the other was in use
    1. Set up reaction according to table
    2. Sample Lane Batch AmpR Index Cells 2X Kapa SYBR qPCR MM 100 uM AmpF 6.4 10 uM AmpR6.3-IndXX H2O Total Volume (uL)
      Sample 1 A5 B1 1 2 25 0.5 5 17.5 50
      Sample 2 A2 B2 2 2 25 0.5 5 17.5 50
      Sample 3 A3 B3 3 2 25 0.5 5 17.5 50
      Sample 4 A4 B4 4 2 25 0.5 5 17.5 50
      Sample 5 A1 B5 5 2 25 0.5 5 17.5 50
      Sample 6 A6 B6 6 2 25 0.5 5 17.5 50
      Sample 7 A7 B7 7 2 25 0.5 5 17.5 50
      Sample 8 A8 B8 8 2 25 0.5 5 17.5 50
    3. Master Mix
      1. 200 uL KAPA SyberFast MM
      2. 140 uL nfH2O
      3. 4 uL AmpF 6.4
    4. Add 43 uL Master Mix to each well
    5. qPCR Cycles
      1. 95C 3 min
      2. 95C 3 sec
      3. 55C 30 sec
      4. 72C 20 sec
      5. plate read
      6. goto b x20
      7. 72C 2 min
      8. 16C hold
  4. PAGE gel
    1. Set up lanes according to table
    2. Sample Lane uL TBE Buffer uL loading dye uL sample
      Ladder 2 4 2 2
      Batch1 3 4 2 2
      Batch2 4 4 2 2
      Batch3 5 4 2 2
      Batch4 6 4 2 2
      Batch5 7 4 2 2
      Batch6 8 4 2 2
      Batch7 9 4 2 2
      Batch8 10 4 2 2
    3. Run gel for 25 minutes at 220V

Results

PCR Gel Image

500px

I had to fix the lane annotations from the top annotations, which were the originals. I forgot (see above) that I switched lanes 1 and 5, so that definitely isn't corrected on the gel. Additionally, I believe that lanes 5-8 were put in the gel backwards (long story involving PCR machines). So, fixing those you get the black box labeling, which I believe to be correct. If that is correct, the 48 bp backbone padlock doesn't work, and it looks like the 68 works better than the 88 (qualitatively). So in the future I'd recommend around a 20 bp spacer, as is used in the 68 bp backbone version. Since I have results, I want to go ahead with size selection and sequencing.