Re: [ccp4bb] A phase ambiguity problem.

2011-04-27 Thread Bingfa Sun
Agree with Tim's idea. Generating a composite omit map to see if your solution is correct (or at least some part is correct if conformational difference exists between model and your protein). Bingfa -邮件原件- 发件人: owner-ccp...@jiscmail.ac.uk [mailto:owner-ccp...@jiscmail.ac.uk] 代 表 Tim Grue

Re: [ccp4bb] Crystal Optimization

2011-04-13 Thread Bingfa Sun
Dear Jobi, For a crystal which is big in size(0.2-0.3mm is pretty big) while diffract poorly, dehydration (increase concentration of the precipitant slowly) is a good choice to improve diffraction, especially for those tends to crack during cryo. Also those regular optimization approaches: Add