User:DrJones1935/5 August 2012

From 2012.igem.org

I. AGE of PCR Samples

  • Make Gel:
  • Measure out 0.50325 g of agarose and add to a 250 mL E-flask
  • Add 50 mL of 0.5x TBE buffer and swirl to mix
  • Cover flask with a Kimwipe and microwave for ~1 minute until clear
  • Allow to cool to ~60 oC and pour into beaker for ethidium bromide (EtBr)
  • Add 1 uL of EtBr stock to agarose and swirl to mix
  • Immediately pour gel into tray with combs
  • Allow to solidify, then remove the comb and tape and place the tray in the gel box with the wells closer to the black electrode
  • Make sure it is submerged in TBE buffer
  • Load Gel:
  • Mix samples as drops on a piece of parafilm
  • Mix:
Ladder (Invtrogen 1 kb plus) Blank Sample
*5 uL DNA ladder
*1 uL 6x Loading Dye
*8.3 uL dH2O
*1.7 uL 6x Loading Dye
*6.3 uL dH2O
*1.7 uL 6x Loading Dye
*2.0 uL DNA
  • Load ~10 uL on gel according to the following chart (except ladder which is 6 uL):
Lane 1 2 3 4 5 6 7 8
NEB 2-log ladder Blank - 2.1 2.2 2.3 2.4 2.5
  • Store DNA at 4 oC
  • Run Gel:
  • Close gel box and turn on power pack
  • Run gel at 30 V for 20 min to stack gel
  • Run gel at 75 V until the markers have reached ~3/4 of gel
  • Image Gel:
  • RESULTS:
No observable product in any lanes

Source: Media:Srk_2012-08-05_13hr_47min.tif

Feature Expected Size (bp)
LacZ 3151


II. PCR for LacZ

  • Mix Reagents:
  • Mix according to the following table


1 Reaction Phusion Master Mix (x2) KAPA HiFi Master Mix (x2) KAPA LongRange Master Mix (x2)
Reagent (uL) (uL) (uL) (uL)
water 33 66 66 59
5x Appropriate Buffer 10 20 20 20
10 mM dNTP mix 1.5 3 3 3
Mg2+ - - - 7
10 uM primer (F) 2.5 (p2f_2) 5 (p2f_2) 5 (p2f_2) 5 (p2f_2)
10 uM primer (R) 2.5 (p2r_2) 5 (p2r_2) 5 (p2r_2) 5 (p2r_2)
Template Mix colony - - -
Appropriate polymerase 0.5 1 1 1
  • Touch a sterile toothpick to one colony each for samples and smear it on the bottom of a tube.
  • Transfer 50 uL of each Master Mix to 6 total tubes
  • Create a separate blank under Phusion conditions
  • Run PCR O/N
Step Temp (oC) Time
1 94 4 m
2 94 30 s
3 53 30 s
4 72 3 m 10 s
5 GOTO 2 7x
6 94 30 s
7 66 30 s
8 72 3 m 10 s
9 GOTO 6 30x
10 72 5 m
11 4