Diy-transilluminator

Transilluminators are especially useful to see DNA bands on a gel. While there is an old upcycled imager in the P1, this has detector problems, so sometimes much of the gel is not even visible... Therefore, we have been trying out new 'DIY-transilluminators' with a little help from some Hackteria friends and others (htgaa)!

DIY Transilluminator

Urs brought his GaudiLabs kit to Hackuarium on 2dec, and he helped Rachel do the soldering and put it all together.
He said it needs a diffuser of some sort to help avoid seeing the whole circuit board below.

11dec17 gel - second PTC PCR test

The chemical PTC can be tasted or not tasted, depending on a GC polymorphism in the TAS2R38 bitter taste receptor. Primers for this test were obtained from Delphine Ducoulombier of l'Eprouvette. Q5 polymerase was used for the amplification, and DNA from Sam (a non-taster) and Rachel (a taster) was used for the test. The DNA was a quick GnG prep that had been concentrated by pptn, after no product was obtained the first PCR attempt, but Rachel's had less than Sam's...
The non-taster band that does not cut with HaeIII (predicted size 221bp) is visible from Sam's DNA, but no virtually no product came from Rachel's... (tasters are expected to have the band cut for 177 + 44bp perhaps there is a difference in the HaeIII cut lane of RA, vs the uncut, with something smaller perhaps just there??)

Gallery

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