Daniel:Notebook/ComboLock/2016-11-22
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Circularization Test 2[edit]
I'm going to try doing another circularization test but this time using a modified protocol for latch/padlock hybridization. I'm going to use the positive control C Probe system for simplicity.
Sample Matrix[edit]
Sample | Condition |
Sample 1 (AB) | Normal |
Sample 2 (AB) | No Template |
Sample 3 (AB) | No C Probe |
Protocol[edit]
- Template-Bead Binding
- Suspend 2 uL (8 ug) beads per sample in 100 uL wash buffer
- Apply magnet for 30 sec and remove supernatant
- Add 2 uL 10 uM template oligo per sample to bead solution; incubate at RT for 5 min
- Wash beads with 100 uL wash buffer; vortex to suspend; apply magnet and remove supernatant
- C Probe Hybridization
- Combine 1 uL of each C probe (10 uM stock) and 3 uL bead wash buffer into a 0.2 mL tube
- Heat C probes to 90C for 5 min; Chill probes on ice to quench
- Add 5 uL probe mixture to beads
- Incubate at 40C for 1 hour with agitation
- Wash beads with 100 uL wash buffer; apply magnet and remove supernatant
- Repeat wash step above
- Add 100 uL cold Low Salt Buffer; apply magnet and remove supernatant
- Latch and Padlock Hybridization
- Add following to a fresh 0.2 mL tube
- 12.2 uL Latch0001, 10 uM stock
- 12.2 uL Padlock0201, 10 uM stock
- 12.2 uL Amp10X buffer
- 85.4 uL nfH2O
- Add 20 uL probe mix to each sample; incubate 20C for 4 min
- Incubate at 95C for 5 min
- Incubate at 60C for 1.5 hours
- Circularization
- Prepare 7X uL Phusion mix
- Add 20 uL Phusion mix to 20 uL of reaction
- Incubate at 60C for 2 hours
Continued tomorrow
Buffers[edit]
Phusion Mix
Reagent | Stock Conc | Final Amount | 1x Vol (uL) | MM Vol (7x) (uL) |
NAD+ | 5 mM | 40 nmol | 8 | 56 |
dNTP | 1 mM | 600 pmol | 0.6 | 4.2 |
Betaine | 5 M | 15 umol | 3 | 21 |
10X AmpLigase Buffer | 10X | 1X | 2 | 14 |
Amp Ligase | 5 U/uL | 10 U | 2 | 14 |
Phusion HF DNA Polymerase | 2000 U/mL | 6.4U | 3.2 | 22.4 |
nf H2O | 1.2 | 8.4 | ||
Total | 20 | 140 |