This week, I started to plan for
cloning using a program, pDRAW32, that lets you clone DNA fragments virtually
by using restriction enzymes. We are cloning three different protein coding
genes, YY1, Lap2B, and lmn A. While it took us a couple of hours to determine
how we can clone these genes, it was exciting learning and becoming more
comfortable with this software. This
week, I also did some tissue culturing, which I became much more comfortable
doing under the hood with sterile technique.
On Wednesday, one of the students
in my lab, Lauren, had to give a presentation for the internship program she is
part of. At the seminar, I learned more about her project, which is closely
connected to mine. At the seminar, a classmate of Lauren’s also gave a
presentation about the connection between depression, platelet serotonin, and
coronary heart disease. On Thursday, Jen, my mentor in the lab, did a western
blot which consists of gel electrophoresis to locate the antibodies from which
the proteins have been separated. On Friday, I had the chance of doing a
Western blot by myself. On Friday, we also transfected cells and completed a
Western on the DNA. After the gel ran through, we had to cut the gel under UV
light and then had to melt the gel. We ended up waiting for an hour before we
realized that our gel wasn’t melting because the heater was broken! After we
finally melted the gel, we did gel extraction which consisted of a series of
washes and running the samples, YY1, Lap2B, and lmnA, on the centrifuge. On
Friday, I also went to Happy Hour, which was a chance to network with people in
other research departments at Johns Hopkins. I got to meet one of the grad
student’s former PI and a grad student who is also working in the epigenetics
department under Dr. Taverna.
This week went by so quickly and I
am looking forward to the coming weeks at my lab.
Sounds like you are learning so much in your lab about extraction techniques! So much of biochem seems to be figuring out how to isolate what you need from a mixture before moving on to studying it! Can't wait to hear about your project soon!
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