Re: [ccp4bb] low resolution secondary structural restraints

2010-05-06 Thread Bradley Hintze
Hi Greg, If you want manual control over user-defined restraints, which I've found helpful when dealing with low-resolution structures, ResDe might help. You can define restraints in PyMol and then save the restraint file in the refmac format. I hope if helps. Here is the link: http://pymolwiki.or

Re: [ccp4bb] low resolution secondary structural restraints

2010-05-05 Thread Pavel Afonine
Hi Greg, you can generate secondary structure restraints definitions for Refmac using this command: phenix.secondary_structure_restraints model.pdb format=refmac Pavel. On 5/5/10 4:33 AM, Gregory Bowman wrote: Hi - I am refining a low (3.7Å) structure with refmac(5.5.0091), and am having

[ccp4bb] low resolution secondary structural restraints

2010-05-05 Thread Gregory Bowman
Hi - I am refining a low (3.7Å) structure with refmac(5.5.0091), and am having trouble maintaining some secondary structure elements. I would like to restrain the H-bonding in clear secondary structural elements, which should help prevent carbonyls in helices from flipping out, etc, but h