Re: [ccp4bb] PEG refinement

2012-12-18 Thread Nicholas Keep
I doubt there is a consensus on this. Your PEG solution is a mixture of lengths of polymer and normally you can only see a small fraction of the PEG molecule. PEG400 will be between 8 and 10 ethylene glycols. Bigger PEGS probably vary more. My experience is that you can often only see densi

Re: [ccp4bb] PEG refinement

2012-12-18 Thread Boaz Shaanan
lbert Guskov [albert.gus...@googlemail.com] Sent: Tuesday, December 18, 2012 1:05 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] PEG refinement Dear all, is there any consensus about PEG refinement? I'm currently refining several structures with a lot of bound PEG molecules. However I&#x

[ccp4bb] PEG refinement

2012-12-18 Thread Albert Guskov
Dear all, is there any consensus about PEG refinement? I'm currently refining several structures with a lot of bound PEG molecules. However I'm completely confused now which ligand description to use. For example, a search in Hic up database reveals 12 possible descriptions for PEG, 5 of them used