Week 5

From Monday the 11th of July to Friday the 15th of July 2011

Monday

Visit of Centraco : a french nuclear waste treatment plant

Strain construction

Start of 5mL cultures of 18A (Amp), 24E (Amp) and Curli(Cn). Incubation at 37°C
Start of 50 mL cultures ( 50mL sterile LB, 500µL antibiotic, 100µL from the 5mL cultures ). Incubation at 37°C overnight.

Tuesday

Strain construction

Miniprep of the ligations from the previous week to check the insert : 5L+2L, 5L+24E, 2M+2L, 2M+24E, 2L-Tet, 24E-Tet
4 clones are chosen for each ligation.
Digestion and electrophoresis : no clone seemed to contain the insert. Decision to verify the digestion, ligation and transformation protocols.

Midiprep of 18A, 24E and curli parts.
Nanodrop analysis :
-18A : 16.7 ng/µL
-Curli : 40.5 ng/µL
-24E : 190.8 ng/µL

PCR and mutagenesis of rcn, csgBA, csgEFG

The sequencing results were not enough good due to too high concentration of mutated plasmid. Resent of dillute sample.

Wednesday

Another french newspaper "Le progrès" interviewed us.

Strain construction

Start of 5mL cultures of 22M, 2M, 2L, 5L, OmpR234 and RBS-GFP-LVA ( synthesized part with an unstable GFP )

Start of 50mL cultures for the same parts.

PCR and mutagenesis of rcn, csgBA, csgEFG

Miniprep of the clones with the mutated plasmid to get more plasmid for the next step.