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If you take new dictionary with new refmac it may solve this and some other naming problems. Try from the website: www.ysbl.york.ac.uk/YSBLPrograms/index.jsp Garib On 3 Jan 2008, at 16:53, Daouda TRAORE wrote: > Hi all, > I'm trying to refine a protein DNA complex using Refmac. > Unfortunately the job fails because of the definition of nucleosides : > In the pdb file I use for molecular replacement (and it's the same > for all protein-DNA complex I found in the PDB) nucleosides are > labelled DG, DT, DA , DC. In the monomer libraries for Refmac these > are labelled GD, TD, AD, CD. > The jobs fails also if I replace the "DG, DT, DA , DC" by "GD, TD, > AD, CD" in the coordinate file prior to refinement. > Could someone help me. > > -- > -------------------------------------------------------- > Daouda A.K. TRAORE, PhD Student > > Laboratoire de Cristallographie et Cristallogenèse des Protéines > Institut de Biologie Structurale de Grenoble > 41 rue Jules Horowitz > 38027 Grenoble Cedex 1 - France > Phone: @IBS: +33 4 38 78 95 96 @ESRF/FIP: +33 4 76 88 27 89 > Fax: +33 4 38 78 51 22 > > ************************ > > Laboratoire Chimie et Biologie des Metaux > CEA Grenoble iRTSV / LCBM / PMB > 17 Avenue des Martyrs > 38054 Grenoble Cedex 9 - France > Phone : +33 4 38 78 38 75 > Fax : +33 4 38 78 34 62 > > E-mail: [log in to unmask] > -------------------------------------------------------- > >