Re: [ccp4bb] distance range of salt bridges

2008-11-21 Thread Steve Darnell
Matt, You should look at the thread entitled "Definition of salt bridge" started on 10/15/08 by Francisco Enguita. The issue is discussed in detail. http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0810&L=ccp4bb&T=0&F=&S=&P=16801 Regards, Steve -- Steve Darnell University of Wisconsin-Madis

[ccp4bb] distance range of salt bridges

2008-11-21 Thread Matt Colins
Dear all, I have a question about distance range of salt bridges. I understand that salt bridges within 4 angstroms are considered strong. However, at 5 angstroms or even 6 angstroms, are salt bridges nonexistent or just being weak? Thanks! Matt

[ccp4bb] study weekend. Notification of fee increase

2008-11-21 Thread Charles Ballard
Dear All It is the last day for the £160 registration fee today! It goes up to £200 tomorrow. Info at usual place http://www.cse.scitech.ac.uk/events/CCP4_2009/

[ccp4bb] Position in Lund

2008-11-21 Thread Salam Al-Karadaghi
Dear All, A position of Associate Junior Lecturer in Molecular Protein Science is open in Lund. The full text of the announcement may be found at the following link: http://www.science.lu.se/the-faculty/vacant-positions Please note that the text of the application says "senior" lectu

Re: [ccp4bb] Self rotation function calculation

2008-11-21 Thread Claudine MAYER
Hi Sampath, We had a very similar case, an octamer (422 symmetry) in C2 space group. What saved us for solving the structure (and by the way interpreting the self-rotation function !!) was a low resolution electron microscopy envelope (silver stain and cryo-EM) that gave us the organisation of th

[ccp4bb] bespoke _chem_link in refmac

2008-11-21 Thread Debreczeni, Judit
Hi, if you feel you are good at _chem_link sections of dictionary files (and know how refmac understands them), please read on. My question in short: what is the Right Way of defining a covalent link between a ligand that is not in the standard refmac library and a standard amino acid residue,