Well, Halloween started a couple of weeks ago for me….and my labmates….with the planning of our Halloween costume. I shouldn’t really say “labmates”, because in truth, they all just did what Toni (the Post Doc in the lab next door) and I told them to do and they’re from 3 labs – although I’m not sure whether the Serre lab counts as a “lab” because Hadley bailed on our costume to dissect mice and Jim has probably never worn a lab coat in his life…….
We DID have one of the world’s geekiest costumes – it’s a molecular biology joke and I don’t expect too many of you to “get” it. All you really need to know is that yes, it was funny and yes, I was VERY excited about it!!! As were a couple of other members of our “team” – Jim???……well I suspect he was just doing as he was told.
We were PCR! That’s “polymerase chain reaction” to those of you who don’t know – it’s how we amplify DNA (or RNA) to manipulate it (clone it, sequence it, mutate it, I’m running out of ideas…..but you get the picture). People used to say that E.coli was the workhorse of molecular biology. I’m here to tell you PCR is the workhorse of molecular biology!!!! And it is!!!
So, we were real-time PCR and there are 5 components to the reaction – the enzyme, Taq (said tack), dNTPs (which are the nucleotides used to synthesise the PCR product – which is just lots of copies of the DNA/RNA of interest), oligonucleotides or primers (the sequences that determine which bit/gene you are targeting for amplification), the DNA or RNA (RNA would be in the form of cDNA – which makes in double stranded) and because this is real-time, we need a means of “seeing” our PCR product, which is where the enzyme SYBR green comes in (I’m not sure whether it’s technically an enzyme though (????) – it binds to the double-stranded PCR product and fluoresces at a certain wavelength). Technically, you need salt, normally MgCl2, but in most reactions, it’s in a mastermix with the Taq.
So here we are:
From left to right: Phyllis is the Taq (with the picture of the thumb “tack” pinning the DNA down), Toni and Jeannie are double-stranded DNA and their shirtsleeves velcro together (the hydrogen bonds), Debbie is our dNTPs, I’m SYBR green, with my flashing LED lights (my fluorescence) and Jim, who is at least smiling in this picture, is our primers.
Those of you who know the department we work in will get a kick out of knowing that we “embraced the complexity” and Jim’s primers are indeed real-time primers I designed to span the Exon5-6 boundary of none other than our favourite gene…..PTEN. And if you didn’t get that, don’t worry, 1000’s wouldn’t!!!
So, we had a pot-luck lunch at work on Friday and everyone bought a dish to share. I bought jalapeno poppers:
But, the piece-de-resistance in my humble opinion was Phyllis’ Kitty Litter cake………..
And if you’re gagging right now, let me assure you that the kitty litter tray and the scoop had only been lightly used prior to this and the cake was delicious – especially those tootsie roll poops!!!!!
So……on to cuter things. This is Meredith, all dressed up as Thumbelina for trick-or-treating:
You’ll notice that Thumbelina has practical shoes on and not the sandals her mother suggested she wear and oh……about 10 layers of clothes. It was cold!!!!!!!!
And some more cuteness, while Thumbelina and I waited rather impatiently for 6pm and the start of trick-or-treating:
I didn’t go trick-or-treating this year! I hung out eating candy, and giving it out, instead. We counted and guesstimate that I gave out well over 800 pieces of candy last night.
