Team:UCLA/Notebook/Honeybee Silk/16 July 2015

Miniprep of 7/15 Cultures

  • I miniprepped each of the five samples of Silk in Pet 24a using the Zymo Miniprep kit.

OD:

  1. 95.98ng/uL
  2. 108.12ng/uL
  3. 88.05ng/uL
  4. 128.87ng/uL
  5. 99.23ng/uL

Colony PCR of 7/15 Transformation

Transformation Results

Each plate only had one colony present. Both were picked and suspended in 100uL Nuclease Free Water.

Colony PCR Reaction

  • using Q5, transformed E. coli, and the VF2 and VR primers in preparation for insertion into psb1c3
  • Two reactions, one for each of the colonies.
Component Volume (out of 25uL)
5X Q5 Reaction Buffer 5uL
10mM dNTPS 0.5uL
10mM VF2 primer 1.25uL
10mM VR primer 1.25uL
Transformed cells in ddH2O 1uL
Q5 High Fidelity DNA Polymerase 0.25uL
Nuclease Free Water 15.75uL


Step Temperature Time
Initial Denaturation 98C 3 min
Cycles (x25) 98C 10s
Annealing 66C 15s
Extension 72C 15s
Final Extension 72C 2min
Hold 12C Hold
  • TM calculated using NEB TM Calculator
  • Total Run Time 35 minutes (including ramp times)

Gel Visualization

Both samples were run on a 1.5% agarose gel against a 1kb ladder.

Expected band size: ~1600bp

Results:

Re-do of Silk-SpyCatcher Transformation

  • There were only one or two very small colonies from our transformation on 7/15.
    • We will colony PCR these two colonies
  • We will also re-try the ligation of the silk+SpyC into the psb1c3 backbone, this time cleaning up the ligation using zymo clean and concentrator and eluting into 10 ul of H20.
  • We can then re try the transformation.