Team:Colombia/Notebook/Digestions
From 2011.igem.org
Digestion Protocols
Double Digestions
4 hour incubation (37°C)
We used serial digestions to improve SpeI efficiency since it wasn’t working correctly as follows:
Ultrapure water | 23.8ul |
Promega ® Buffer D | 4ul |
XbaI | 0.6uL |
EcoRI*/PstI** | 0.6uL |
DNA | 1ug |
Final volume | 40uL |
We then purified the digestions using the Promega ® Wizard Sv and PCR Clean-Up system which were then eluted to 17.6 uL of ultrapure water or precipitated using Sodium Acetate and ethanol in ice.
Promega ® Buffer H | 2uL |
EcoRI**/PstI* | 0,6uL |
DNA | 17,6uL |
Final volume | 20uL |
[*] Plasmid opening [**] Fragment extraction
Run a 1% agarose electrophoresis for 55 minutes with 70V, and purify the expected weight bands using the Promega ® Wizard Sv and PCR Clean-Up system.