Re: [ccp4bb] Phasing with Many Monomers/AU

2014-01-24 Thread Fabio Dall'Antonia
Dear all, I don't know how closely this relates to what James pointed at, but regarding the aspect of NCS information usage in the heavy-atom finding/refinement stage, I would like to mention two programs of my knowledgethat are able to detect NCS in a set of putative heavy atom sites froma

[ccp4bb] Postdoctoral Research Fellow (Structural Biology)

2014-01-24 Thread Anne-Marie Krachler
Dear Colleagues, Description for a postdoctoral position in the lab of Dr Anne-Marie Krachler, University of Birmingham, UK; Post is available from 1 March 2014 Postdoctoral Research Fellow (Structural Biology) Applications are invited for a highly motivated post-doctoral researcher with

[ccp4bb] Neutrons in Biology and Biotechnology 2014 - ILL - Final Announcement

2014-01-24 Thread Estelle Mossou
Dear all, This is the final announcement for the Neutrons in Biology and Biotechnology meeting which will be held at the Institut Laue Langevin on the 19th - 21st February 2014. The programme has an exciting list of speakers and concludes with an open ILL/PSB colloquium from Tim Hunt (Nobel

Re: [ccp4bb] Two P1 xtals with same xtal contacts give 2 different asymmetric units

2014-01-24 Thread Eleanor Dodson
You dont say whether the unit cells are the same? In cases like this I sbmit both sets of coordinates to PISA - to get the preferred biological unit and check whether each structure has similar contacts. PISA is distributed with CCP4 but the version at the EBI pdb gives prettier results!

[ccp4bb] Postdoc Opening-Structural Biology/Chemical Biology

2014-01-24 Thread Jiaoyang Jiang
We are inviting applications for a postdoctoral position immediately available in Dr. Jiang’s laboratory at Drug Discovery Division of University of Wisconsin-Madison School of Pharmacy. An ideal candidate will undertake a project that applies multidisciplinary approaches (e.g., enzymology,

[ccp4bb] PhD studentship opportunities in Leeds

2014-01-24 Thread Thomas Edwards
Dear BB, If you are, or know, a keen, talented, motivated student looking for a PhD, then there are several opportunities within the Faculty of Biological Sciences at the University of Leeds. One project involves the use of stapled peptides to investigate inhibition of protein-protein

[ccp4bb] Crystallography Comics

2014-01-24 Thread Katherine Sippel
Hi all, I thought the bulletin board might be interested to know that one of the contributors on Popular Science is featuring a webcomic series on X-ray crystallography. The first post went up yesterday and can be found here ( http://www.popsci.com/blog-network/boxplot/x-tallographers ). If

Re: [ccp4bb] Control the crystallization process in the presence of small volatile organic molecules

2014-01-24 Thread Mark van der Woerd
Chen, Dioxane is not easy to work with, exactly for the reasons you describe. There is one thing you did not mention, which I know to be an additional issue: the quality of the dioxane. I do not know if you need good quality (whatever that is) but it is a fact that crystallization works with

Re: [ccp4bb] Control the crystallization process in the presence of small volatile organic molecules

2014-01-24 Thread Chen Zhao
Dear Mark, Thank you so much for your reply. Interestingly, after several days I posted this question, I found both my previous crystals and precipitant completely dissolved, but instead much larger crystals start to appear. However, most of them are intergrown together, only few are single. And

Re: [ccp4bb] Control the crystallization process in the presence of small volatile organic molecules

2014-01-24 Thread Diana Tomchick
Another thing to try when cryoprotecting any crystals grown at room temp using a volatile precipitant is to first transfer the crystal tray to 4 degrees, then quickly add a cold aliquot of a viscous cryoprotectant to the drop. Evaporation is considerably slower at 4 degrees, and I prefer to