Arichard:Notebook/bulk150122
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Bulk libraries January 22, 2015
- Used Brandon's protocol for DNA purification after guanidine HCl
- Used Blue's method of 2x Ampure XP at 0.8:1 ratio to select 200-800 bp.
- Qiming Jin (QJ) ran most of these samples with my supervision.
- Used SW480 2N Full sorted October 21, 2014 (tubes labeled 4 in sort box)
- Maximum volume of HLS used to ensure hypotonicity (35 ul HLS + 35 ul G-HCl + 126 ul Ampure XP = 196 ul total in 200 ul PCR tube)
- Lysed in 35 ul 1X HLS at RT for <5 min, followed by 35 ul of 8M guanidine HCl.
- Purified with 126 ul (1.8:1) Ampure XP, washed 2X with 80% EtOH
- Eluted in 7 ul H2O
- 2 ul 5X Nextera buffer and 1 ul 1:50 Nextera v1 diluted in 50/50 TE/glycerol, 5 min at 55 degC
- 1 ul of 1:100 ProtQ (Stock is 20 mg/ml) diluted in H2O, 10 min at 50 degC, 20 min at 70 degC
- 1 ul of Exo- Klenow (Epicentre) plus 0.4 ul of 25 mM dNTPs (RepliPhi kit), 15 min at 37 degC, 20 min at 75 degC
- 0.6 ul barcoded Adapter 2
Ran first gel after first Ampure. 3 out of 20 ul of each sample loaded.
Sample 3 (index 4) negative. Mis-loading suspected. QJ ran second gel to confirm. Another 3 ul loaded (14 ul now remaining).
Second gel confirms that sample 3 did not amplify in PCR. Performed second Ampure XP purification:
- 14 ul sample (20 - 3 - 3)
- 11.2 ul beads
- Elute in 20 ul H2O
2X Ampure XP worked well. Smears look equivalent to PA size selection. Samples 1 and 2 submitted (QJ01 and QJ02)