Team:Paris Saclay/Notebook/June/28

Tuesday 28th June

Lab work

Stock solutions preparation

  • 200 mL 60% glycerol stock: 120mL glycerol 100% + 80mL water.
  • 200mL CH3COOK 5M stock: 98.15g of CH3COOK powder + 60mL water, shake and add water to 200mL
  • 100mL Solution III (plasmid extraction protocol): 28.5 mL water + 60mL CH3COOK 5M + 11.5 mL of pure liquid CH3COOH
  • 200mL TE stock: 2mL Tris+ 0.4 mL EDTA + water to 200mL


Interlab study

Cytometer

By Caroline, Alice, Lea and Charlene, with Isabelle help

Cells culture created on the 27/06/2016 were analysed with cytometer. Results were as expected.


Visualization

Puc19 digestion

Puc19 was digested as expected.

Puc19-gBlocks ligation

By Charlene

GBlocks were resuspended into 100µL of TE buffer (except for 4-1 which was resuspended into 50µL of TE) in order to get a concentration of 10ng/mL after a quick spin. Solutions were vortexed, incubated for 20min at 50°C, vortexed another time and quickly spun down.

gBlock 1-1 1-2 2-1 3-1 3-2 4-1 4-2 GFP1-9
Size (bp) 960 960 1023 960 960 706 1288 862
vector size/insert size x 3.5 9.84 9.84 9.24 9.84 9.84 13.39 7.34 10.96

3 controls were made :

  1. 1µL digested vector + 9µL H2O
  2. 1µL digested vector + 1µL ligase + 1µL ligation buffer + 7µL H2O
  3. 1µL digested vector + 1µL ligase + 1µL ligation buffer + 7µL insert

Transformation with ligation products

By Caroline and Charlene

DH5α cells were transformed with ligation products using the same protocol as on 24/06/2016 Transformations were displayed on Petri dishes with LB medium containing 50µg/mL of ampicillin and covered with 0.5µL of 80mg/mL XGal and 0.5µL of 1M IPTG.


Bringing DNA closer

Plasmid extraction

By Naiane and Lea

Plasmids from cell culture of the 27/06/2016 were extracted following the same protocol as on 24/06/2016.

Cells transformation

By Naiane

Extracted plasmids (2µL) were transformed into DH5α competent cells (50µL) using the same protocol as on 24/06/2016.


BioBrick characterization

Plasmid extraction

By Lea

The same protocol as on 24/06/2016 was used to extract K1372001 from DH5α cells, except the phenol chloroform step was not done.

=BL21 competent cell culture

By Caroline A colony of BL21 cells was put into 4mL of LB medium and incubated overnight at 37°C, 180 rpm.