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Q5 PCR reclone, gel extraction, and miniprep 6

Wet lab Both projects Confirmed

Contributors: Chloe

Q5 PCR reclone, less DNA (p. left of this spread, no date written)

Left to run overnight.

Componentxmm10 (✱)ymm10
Q5 reaction buffer50 µl50 µl
GC enhancer50 µl50 µl
dNTPs5 µl5 µl
Template DNA (1 in 1000 dilution)10 µl40 µl
Q5 polymerase2.5 µl2.5 µl
Water357.5 µl327.5 µl

1 in 1000 dilution made from 999 µl water + 1 µl MSA [?]. 47.5 µl xmm10 + 1.25 µl primer, ×5 replicates, plus a negative control; 47.5 µl ymm10 + 1.25 µl primer, ×5 replicates, plus a negative control. Primers: End For1, Start Rev1. Negative control: no primers, with 2.5 µl extra water added.

Gel extraction setup

Ladder made: 20 µl ladder + 80 µl loading dye + 100 µl water. Gel: 250 ml 1× TAE buffer + 2 g agarose + 12.5 µl gel red.

Three stored gel products used — the longest bands from the 20 August gel — labelled 1, 2, 3. Elution run for 6 minutes rather than the usual 5. 10 µl loading dye added to each sample before loading.

Gel extraction results, Nanodrop, and miniprep 6

(No date written on this page — placed here as a direct continuation of the gel extraction above.)

Lanes: ladder (25 µl) | −ve ✱ | A ✱ | B ✱ | C ✱ | D ✱ | E ✱ | −ve | A | B | C | D | E | sample ② | ladder (25 µl); 50 µl loaded. A note by sample ② reads “sample didn’t get in well.” Only one product was visible — cut out and put in the fridge, possibly because it wasn’t mixed well.

Gel extraction Nanodrop (three unlabelled numbers per sample, presumably conc./260-280/260-230):

SampleValues
①7.529, 2.179, 1.108
②5.774, 2.884, 0.493
③5.671, 4.197, 0.531

Miniprep 6, TOP10 CxnA + CxnA-His, 5 ml of overnight culture used. One Nanodrop line is scribbled out.

SampleConc.260/280260/230
CxnA35.7311.7932.283
CxnA-His436.849 [?]1.9082.192

CxnA-His’s concentration and 260/230 figures are overwritten in the original — transcribed as written, flagged rather than guessed at.

Heather repeats the PCR

Repeated with Q5 ymm10 (10 min [?]), primers End For1 + Start Rev1 → successful replicates, plus one unused replicate with a smear. A note underneath asks whether the primers themselves might be wrong.