Saturday 8 December 2007

Getting inertia again.. suddenly don't feel like leaving san diego and go home. 3 weeks might not be that short after all

Al was introducing Gateway cloning the other day.. and i felt that we're quite suaku for not knowing about this earlier. Basically you clone using homologous recombination instead of ligation. No more worrying about low efficiency ligations, just PCR and recombine.

P was presenting about the complex. Looking at where she's going, she's really going to get a Cell paper. Now she thinks that my protein is a substrate for hers.. why didn't you tell me any of these before? Whatever.. Now you can go KO ur own gene and work it out.. maybe after the phosphatase gets KO-ed. I believe that my new gene does something too.
1 thing I have to admit about this woman. She's capable. She wants to be a PI and is definitely working towards it. I can imagine her being a PI and she would be quite good at it, though she might be a micromanager. Already, she's presenting her work as if it's the most impt thing in the world..

I can't make up my mind. Every time I hear a new thing, or someone speaks enthusiastically about something, I get interested. The other day I heard about an interesting mechanism how G proteins get turned on and affect their effectors. Suddenly biochem sounds appealing again, imagining how things work at the molecular level was very fun. But I'm pretty sure I don't want to be a biochemist. I guess the only good thing is that I'm allowing the many options to stay open..


More bio talk. Had the symposium for Embryology lab. It's absolutely a party, with all kinds of exotic snacks from Trader Joe's, lots of Cuties and champaigne! Champaigne in class, can you believe it? Anyway many people did very amazing experiments and got very fantastic results. RA and ethanol produced some pretty screwed up tadpoles. But the most impressive results are the transplants and ablations. This group chopped off the tail of a young tadpole and transplanted into the belly of another. The host grew to have 2 tails and the donor lived without a tail. Another group did something even more amazing. They chopped a young tadpole into 2 (anterior and posterior), rotated the 2nd part of the embryo 180 degrees and allowed the tadpole to heal. Guess what? The tadpole managed to heal and the 2 body parts stuck to each other and formed a complete tadpole! And what's more fantastic was that the spinal cord moved from the top of the embryo in the front to the bottom of the embryo at the back cos the tail region was rotated 180 degrees. The heart was displaced to the side and the anus was on top of the tadpole instead of the bottom. I thought that was the most amazing result of the day. Very creative experiment.


Of course our results were way too cool too. We produced 2 headed tadpoles by transplanting the organizer of an early frog gastrula to the ventral region of another gastrula. And our 100% survival rate was way too impressive. I don't know how we got such successful results but we did. The other organizer transplant groups had pretty sad results. Maybe it's really because my side of the lab is warmer.


Controls. The one on top is a normal tadpole. The round ball is the donor of an Organizer (organizer sends out signals to pattern the embryo). The one at the bottom is a negative control where we stuffed a piece of non-organizer tissue into the spot where we normally put the organizer.

2 headed tadpoles!! And a 2-tailed one. We were escatatic when we saw these.
Yay! Felicia and I with our prof.

2 comments:

fm said...

cool! knew i shld have taken embryology lab. and its always a good thing to be interested in everything. keep your options open, ull never know which project/prof combination is best for u in grad sch.

like wy was telling me, when u get to grad sch ull prob work in a different topic that u applied for. theres too many interesting projects out there.

or in stanford anyway.

p/s: ur site has some pretty bad popups. its prob ur webstats thing. use statcounter instead.

sunny said...

2 headed tadpoles? 2 tailed tadpoles?? i'm horrified. that you're ecstatic.