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Things we did today

Wetlab work

Colony PCR: verified plasmids pSB1A3, pSB1A2, pSB3K3, and additionally verifying a sample of pSMC121 graciously donated by Dr.C.

Margaret

Results

Lane 2 contains bands that are approximately 1kb, while I would expect pSB1A3 to be 991bp. Lane 3 containing pSB1A2 should be 913bp and is just above the 0.9kb mark. Lane 4 contains pSB3K3 and should be 991bp and is just below 1kb.
The positive control, UPA amplifying algal DNA is at 0.5kb as expected.
The negative control, UPA amplifying water, contains no band.
In lane 7 pSMC121, a plasmid containing the omega interposon was run, but no DNA was stained.

Conclusions

The plasmids (pSB1A3, pSB1A2, pSB3K3) were verified using VF2 and VR. I will make a glycerol stock and do a plasmid prep.

The absence of a a band for pSMC121 may explain the difficulty I have had in amplifying the omega region of this plasmid. I need to go get a new sample.

Krystle

Performed 2 restriction digests on nir, gfp, and gfp fusion brick with EcoRI and SpeI

trial 1: digested 5ul of each plasmid prep in a 50ul reaction mixture, ran 20 ul of the digest after 3 hours

trial 2: digested 25ul of each plasmid prep in a 50ul reaction mixture, ran 20 ul of the digest after 2 hours

Krystle, Margaret

We figured out why some of the biobrick extractions did not transform. Some of these parts are on pSB2K3[[1]] which is a low copy until IPTG is added to the medium in which case it becomes high copy! So next time we make this, add 1mM IPTG to the media.

History is the only laboratory we have in which to test the consequences of thought. - Étienne Gilson