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[ccp4bb] Problem with VDW restraints in Refmac |
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CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999Subject: Problem with VDW restraints in Refmac From: Alastair McEwen alastair {- at -} TITUS {- dot -} U-STRASBG {- dot -} FR Date: 2007-08-16 Dear all, I am refining a structure with a partially occupied ligand. The binding site contains a Glutamine residue with a dual conformation with the ‘B’ conformation overlapping with the ligand. I have named the ligand ‘ALIG’ but when refining, Refmac notes a number of VDW deviations and the ligand and side-chain are moved away from each other and out of the density. When I refine without VDW restraints the ligand and side-chain refine well in the density but I would like to be able to use these restraints for the rest of the structure. Is it possible to have Refmac ignore these restraints just for this ligand and residue? Many thanks, Alastair Dr. Alastair McEwen Département de Biologie et Génomique Structurales IGBMC, 1 rue Laurent Fries, BP10142 67404 ILLKIRCH, France Tel: +33 (0)3 88 65 57 73 Fax: +33 (0)3 88 65 32 76 email: alastair@igbmc.u-strasbg.fr CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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