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BQ-042-101-05
Revision : 2 (2016-07-04)
d. DNA Extraction from Gram-Negative Bacteria for Mini/Midi/Maxi
1.
(Cell collection)
Collect the bacteria
cells (~1x10
9
(mini)/ ~5x10
9
(midi)/ ~1x10
10
(maxi)) by
centrifugation at 6000 x g (> 8,000 rpm in a microcentrifuge) for 10 min (or >3,500 rpm for 20 min).
And completely remove the media by pipetting.
2.
(Resuspension of cell pellet: 2-3)
Add 180 μl (mini)/ 1.8 ml (midi)/ 3.6 ml (maxi) of Buffer ⓛ (Lysis)
to the collected cell pellet and completely resuspend by vortex mixer or pipetting.
3.
Transfer the resuspended cell pellet to each specific tube format.
a. (Mini) Transfer the resuspended pellet to a 1.5 ml or 2 ml tube.
b. (Midi) Transfer the resuspended pellet to a 15 ml tube.
c. (Maxi) Transfer the resuspended pellet to a 50 ml tube.
4.
Go to step 3 of “DNA Extraction from Animal Tissue” in page 14 and continue the extraction process.