Team:Stockholm/4 August 2010




Cloning results

From 3/8 transformations

pSB1A3.SOD: Bacterial lawn on all three plates, probably due to the Amp in plates having degraded. Plates discarded
pSB1A3.yCCS A:
pSB1A3.yCCS B:
pSB1C3.IgG prot.: Good colony yield. Left to grow and mature for 4-5 more hours until red colonies appeared.

ON cultures

Four colonies picked from IgG protease plate and resuspended in 10 μl LB. 3 μl used to inoculate 5 ml LB + 25 Cm. Grown ON in 37 °C, 250 rpm.


New quick-transformations were performed for:

  • pSB1A3.SOD
  • pSB1A3.yCCS A
  • pSB1A3.yCCS B

Procedures as described 3/8.

CPP DNA synthesis

Cluster of C-CPPs.
Cluster of N-CPPs.

Since our previous CPP synthesis order was rejected due to repetetive sequences Johan and I redesigned the order into two separate clusters, CPP_N and CPP_C. The new clusters were designed with both restriction sites and primer annealing sites flanking each CPP. An extension sequence was also added to enable gel separation after digestion, as the CPPs are very similar in length.

Johan also redesigned the coding sequence by shifting codons by the addition of "silent mutations".

Fermentas/ThermoFisher Scientific sponsorship

Called Fermentas/ThermoFisher Scientific and got a small (but much appreciated) sponsorship for FastDigest AgeI restriction enzymes. Their logotype was added to our dedicated sponsorship page.



- Gel

  • 0.5% agarose gel
  • No products!
--> Primers are double and triple checked... Trying a gradient!

- amplifying and moving

  • the PCR products (from 2010-08-02) are treated with the restriction enzyme AgeI
    • the mutated MITF should show two bands: ~1300bp and ~10bp (which you dont see)
    • the control (non-mutated) MITF should show three bands: ~1060bp, ~200bp and ~10bp (which you don't see)

dNTP 10µM (µl)
ATP 100µM 7
CTP 100µM 7
GTP 100µM 7
TTP 100µM 7
sH2O 52 tot 70

Mix (µl) X18 conditions
sH2O 39.5 711 time °C
F primer 0.75 13.5 2m 94
R primer 0.75 13.5 30s 94 )
buffer 5 90 30s 45, 50, 55 > 5 cycles
dNTPs 10µM 1.5 27 1m30s 68 )
MgSO4 50µM 1 18 30s 94 \
polymerase 0.5 6 1m30s 68 / 25 cycles
DNA 1 18X1 10m 68
tot 50 oo 10


Mini prep on Tyrosinase

I performed a mini prep on an inoculated Tyrosinase in its original vector sample from a glycerol stock. The method was according to the procedure described under Protocols.

Spectrophotometer: 320 ng/ul

  • λ260: 0.065
  • λ280: 0.034
  • λ315: 0.002

The Faculty of Science at Stockholm University Swedish Vitiligo association (Svenska Vitiligoförbundet) Geneious Fermentas/ Sigma-Aldrich/