[ccp4bb] tool for calculating average alpha helical rise per trun

2012-08-17 Thread Uday Kumar
Hello could any suggest some ways/tools to calculate average alpha helical rise per turn for a helical model from PDB. Thank you in advance regards uday

[ccp4bb] CCP4 Newsletter 48

2012-08-17 Thread David Waterman
Hi folks, After a brief hiatus (okay, more than four and a half years) the CCP4 Newsletter on Protein Crystallography is back! The latest issue is now available from the website http://www.ccp4.ac.uk/newsletters.php in both HTML and PDF. This edition follows hot on the heels of the 6.3.0 release

[ccp4bb] best strategy to establish stable expression in mammalian cells

2012-08-17 Thread Jerry McCully
Dear All; We are planning to establish stable CHO or 293 cell clones to express some receptors. I heard that it is time consuming to select high expression clones using pcDNA3.1 vectors. As our crystallographer are dealing with all kinds of proteins, can anyone

Re: [ccp4bb] best strategy to establish stable expression in mammalian cells

2012-08-17 Thread John K Lee
Hi Jerry, Perhaps this Nature protocols paper from the Stroud Lab at UCSF might be useful. Overexpressing human membrane proteins in stably transfected and clonal human embryonic kidney 293S cells http://www.nature.com/nprot/journal/v7/n3/full/nprot.2011.453.html -john On Aug 17, 2012,

Re: [ccp4bb] Evaluating crystallogarphic experiment

2012-08-17 Thread Roger Rowlett
Quite common. And it may be a good sign for crystallizability in those conditions. As the concentration gradients dissipate from the initially mixed drop, your protein re-solubilizes. Roger Rowlett On Aug 17, 2012 5:31 PM, Yuri Pompeu yuri.pom...@ufl.edu wrote: Hello everyone, I have just made