2x5 mL LB medium were inoculated with 50 µL DH5α, aliquoted for a preculture and incubated overnight (16,5h) at 37 °C.

250 mL were inoculated with 5 mL of preculture and incubated until they reached an OD of 0,5. After centrifugation, the cell pellet was washed with HTP buffer and resuspended in 3 mL HTP buffer. In the end, 225 µL DMSO was added to an end concentration of 6-7%. The 50 µL aliquots were frozen in N2(l) and stored at -80 °C.

1 µL plasmid with a amp-resistence was put on ice for 10 min. A heat shock was induced for 45 s at 42 °C. The sample was put on ice for another 10 min and then incubated in 200 µL LB for 1h before it was plated onto LB-, ampicilin- and canamycin-plates.

50 mL LB-medium (with ampicilin) were inoculated with E.coli BL21 PlyS and grown overnight.

Plates from 26.03.2014

Inoculation of LB-plates with E.Coli DH5α with PSG1164.

Miniprep according to the miniprep kit protocol (Omega) with 2x6 mL preculture.

DNA-concentration:

• 1. 233,2 ng/µL
• 2. 261,3 ng/µL

Digestion scheme:

Incubate samples for 60 min at 37 °C, then induce a heat shock for 2 min at 45 °C. 5 µL marker and 10 µL of the samples are loaded onto the SDS-gel.