[ccp4bb] Coot-0.3

2007-04-07 Thread Paul Emsley
Dear CCP4bbers, We are pleased to announce the (slightly delayed) third anniversary release of coot: source: http://www.ysbl.york.ac.uk/~emsley/software/coot-0.3.tar.gz binaries: http://www.ysbl.york.ac.uk/~emsley/software/binaries/stable/ Happy Easter. Paul. Release 0.3 "Basil Grande" o

[ccp4bb] effect of high salt on protein

2007-04-07 Thread bputcha
Hi all, I keep my protein at 1 M NaCl, at some stage of purification, for about 30 minutes. Protein does not precipitate out at that stage and susequently when the salt concentration is reduced. I would like to know if such a high salt concentration can perturb ( irreversibly) the structure or

Re: [ccp4bb] effect of high salt on protein

2007-04-07 Thread Artem Evdokimov
You have to judge using some sort of a biochemical or biophysical method. Yes, protein can be functionally/structurally impaired and yet still soluble - however there is very little reason to suspect this due to salt exposure - unless you have hard evidence. I have worked with several proteins tha