Re: [ccp4bb] Ligand fitting in COOT and SHELX refinement

2007-06-22 Thread George M. Sheldrick
You can use SHELXPRO to generate ligand restraints, reading in the ligand from the CSD or as a SHELX file (which if necessary can be generated from a PDB file using SHELXPRO). You may have to add some extra restraints by hand (e.g. FLAT, CHIV). George Prof. George M. Sheldrick FRS Dept. Struct

Re: [ccp4bb] Ligand fitting in COOT and SHELX refinement

2007-06-22 Thread Dale Tronrud
U Sam wrote: Hi I would like to know following issue for a ligand. A ligand of a long alkyl chain can have multiple conformation. In coot in order to fit any protein residues into "difference Density", we can select a specific "rotamer" conformation and refine. For fitting ligand of above kind,

Re: [ccp4bb] Ligand fitting in COOT and SHELX refinement

2007-06-21 Thread U Sam
My following question relates to the fitting and refinemt of a ligand, n-octyl-beta-D-glucopyranoside. Sam > Date: Fri, 22 Jun 2007 06:27:45 + > From: [EMAIL PROTECTED] > Subject: [ccp4bb] Ligand fitting in COOT and SHELX refinement >

[ccp4bb] Ligand fitting in COOT and SHELX refinement

2007-06-21 Thread U Sam
Hi I would like to know following issue for a ligand. A ligand of a long alkyl chain can have multiple conformation. In coot in order to fit any protein residues into "difference Density", we can select a specific "rotamer" conformation and refine. For fitting ligand of above kind, how does it wor