Skip to main content

Jaewon Oh - Week 1

After a hectic first week, I am finally settling into my lab. My lab is fairly small and I have only met three people: Dr. Townsend (PI), Dr. Cannataro (PostDoc), and Dr. Wong. I only really interact with Dr. Townsend and Dr. Cannataro because Dr. Wong works with fungi. It was definitely very awkward on the first day we all met. I tried making small talk during lunch but it never really led anywhere. I soon realised that if I was going to talk to Dr. Townsend and Dr. Cannataro during my experience, a discussion of science would open them up. Things are, however, starting to become less awkward and I am more comfortable with asking questions and seeking help.

Originally I thought that I would be working with prostate cancer, only to be given a paper on ALK receptors in neuroblastoma a week before I arrived at the lab. After having read the paper, I was quickly put to work on a project that would aim to compare the ALK mutations with their specific selection intensities. By doing so, we can identify which mutations actually have an effect on tumour progression or not. Once I organised the mutation data into google sheets, I was ready to compare it with the selection intensity data our lab had. Unfortunately, it turned out that there wasn't enough data on ALK, and furthermore, on the specific mutations the paper had included.

To keep me busy while Dr. Townsend and Dr. Cannataro sort out the ALK data shortage, Dr. Townsend sent me a paper on TP53 mutations. Reading a new paper wasn't difficult because EXP had prepared us for this. But unlike the ALK paper, the TP53 paper didn't provide any graphs/tables. So using an online database, I found data on TP53 mutations and their functional assessments in different experiments. Sorting this data with my lab's data on excel is quite a hefty task. In order to become more efficient in organising data in excel, I have begun to learn how to use the coding language "R". Despite it being tedious and difficult to essentially learn a new language, I am up for the challenge and strongly believe that it will be a beneficial asset in my future both in and out of this lab.

I am currently taking crash courses on R, and once I become more proficient in manipulating data, I can compare and organise bigger sets of data. This will allow me to answer more questions on possible relationships between cancer and selection intensities. With the ALK and TP53 projects available, I will see which one develops into a more long term one.

Finally, here is my work place. I do have to get up and move every hour because sitting in a chair and staring at data/code can take a toll on me :)

Comments

Popular posts from this blog

Kylie Heering, Week 2 at the Goldstein Lab

We started off our week with a congratulatory acai bowl trip to celebrate Preston’s acceptance into a training grant program. Acai bowls in California top Playa Bowls (no question about it). From what I can tell, its a pretty huge honor to be recognized by this grant, but he’s really humble about it. On Monday, Preston and I decided that testing antibodies that have never been tested on prostate epithelial cells before would be a good objective for my first Western blot on my own. We needed to probe for ASCT2, a glutamine transporter, and GLS in order to determine if their corresponding antibodies are functional. Antibodies are crucial for Western blots because they bind to the protein of interest (POI), allowing for us to qualify its expression after imaging. As such, Preston wanted to make sure they worked by probing for ASCT2 and GLS on three different cell lines. Cell lines are commercially purchased human cells that have been immortalized (modified to grow indefinitely) by telome...

Alan - First Week at UCSF

Hi Everyone! After arriving in San Francisco last Sunday, I spent this past week settling into the downtown Berkeley apartment that I’ll be sharing with Rohit for the next couple of months, as well as learning my way around the Roy lab at UCSF. First day at the lab was really exciting. Here are a couple pictures of the Mission Bay campus, which was completed just a few years ago. Everything is super new and modern, and there’s still construction for other buildings going on around the campus. Most of the people who work at the Mission Bay campus are either professional researchers or doctors/nurses for the nearby hospital. The graduate students take most of their classes at the original Parnassus campus (where Maya is). I work in Byers Hall, which is connected to Genentech Hall and a short walk down the block from the shuttle stop. There are three other volunteers working for the Roy lab this summer – Kimmai, David, and Pujita, who are all undergrad college students...

Jaewon Oh - Week 7 and 8

Finally done here with my experience and I wish I had more time keep researching so that I have something a little more "finalised" to present. But I guess that's what past EXP kids meant when they said that 8 weeks of research is not enough and I'll have to work with what I've got. To solve the problem of not having enough data points, we used the online TCGA database for raw data that would be used to calculate mutation rates. Mutation rates were calculated through an R coding script that Dr. Cannataro had made. Because the mutation rates were tumor specific, we had to change the proportions that were obtained from the IARC database using data from another database called cBioPortal. Basically we had to multiply the number of times a certain variant was seen in the IARC database by the percentage of tumors that have a tp53 mutation, because our mutation rates are calculated across all tumors in specific cancers (confusing, I know). After graphing the mutatio...