Showing posts with label protein structure. Show all posts
Showing posts with label protein structure. Show all posts

Thursday, June 20, 2013

A neat bit of work.

From the people who brought you a structure of an unengineered full-length GPCR in phospholipid bilayers comes a structure of an unengineered full-length mercury transporter in phospholipid bilayers.  Gotta say that this is pretty neat.....

While new technical difficulties are otherwise occupying my efforts, I have enough things in the air to keep me busy.  Speaking of which, back to it! Read more!

Tuesday, September 27, 2011

Surely you jest!

So, I strongly recommend everyone checks out this paper -

Accessing protein conformational ensembles using room-temperature X-ray crystallography

- which was just published in PNAS this week. The paper cites a 2004 paper by Bertil Halle (which I mentioned a while back) on the potential consequences of flash freezing and cryocrystallography.

Enjoy! Read more!

Tuesday, September 20, 2011

No, I am not going to talk about the recent paper on the success of Foldit. Mostly since if you can even get a crystal structure for something, it's probably not agonizingly painful enough for me to work on - as I've said before, give me your disordered, your poorly soluble, your aggregated masses yearning to be analyzed.

Anyway, I wanted to mention this interesting-looking paper:

Binding Leverage as a Molecular Basis for Allosteric Regulation. I haven't had a chance to really dig into the paper, but the idea itself is simple enough - ligand binding can couple to various collective motions in proteins to varying extents, due to which we observe allosteric modulation of enzyme function. There are obvious oversights (one example that they mention in the paper - the lack of attention paid to proteins that aren't enzymes such as signaling proteins of various types), and I'd want to pore through which structures they used in the PDB (e.g., how did they deal with the family of structures that are generated by NMR if applicable). Then again, I usually consider thought-provoking ideas worth the publication, even if a judiciously skeptical outlook may make them seem a little less lustrous. Read more!