PMID- 20057045 OWN - NLM STAT- MEDLINE DA - 20100108 DCOM- 20100624 IS - 1399-0047 (Electronic) IS - 0907-4449 (Linking) VI - 66 IP - Pt 1 DP - 2010 Jan TI - Molecular replacement with MOLREP. PG - 22-5 LID - 10.1107/S0907444909042589 [doi] AB - MOLREP is an automated program for molecular replacement that utilizes a number of original approaches to rotational and translational search and data preparation. Since the first publication describing the program, MOLREP has acquired a variety of features that include weighting of the X-ray data and search models, multi-copy search, fitting the model into electron density, structural superposition of two models and rigid-body refinement. The program can run in a fully automatic mode using optimized parameters calculated from the input data. FAU - Vagin, Alexei AU - Vagin A AD - Structural Biology Laboratory, University of York, Heslington, York YO10 5YW, England. alexei@ysbl.york.ac.uk FAU - Teplyakov, Alexei AU - Teplyakov A LA - eng GR - Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091221 PL - England TA - Acta Crystallogr D Biol Crystallogr JT - Acta crystallographica. Section D, Biological crystallography JID - 9305878 SB - IM MH - Automatic Data Processing MH - Crystallization MH - Crystallography, X-Ray/*methods MH - Models, Chemical MH - Molecular Conformation MH - Search Engine MH - *Software EDAT- 2010/01/09 06:00 MHDA- 2010/06/25 06:00 CRDT- 2010/01/09 06:00 PHST- 2009/07/09 [received] PHST- 2009/10/13 [accepted] PHST- 2009/12/21 [epublish] AID - S0907444909042589 [pii] AID - 10.1107/S0907444909042589 [doi] PST - ppublish SO - Acta Crystallogr D Biol Crystallogr. 2010 Jan;66(Pt 1):22-5. doi: 10.1107/S0907444909042589. Epub 2009 Dec 21. PMID- 18094465 OWN - NLM STAT- MEDLINE DA - 20071220 DCOM- 20080331 LR - 20130903 IS - 0907-4449 (Print) IS - 0907-4449 (Linking) VI - 64 IP - Pt 1 DP - 2008 Jan TI - Model preparation in MOLREP and examples of model improvement using X-ray data. PG - 33-9 AB - The success of molecular replacement is critically dependent on the quality of the search model. Several model-preparation procedures are integrated in the molecular-replacement program MOLREP. These include model modification on the basis of amino-acid sequence alignment and model correction based on analysis of the solvent-accessibility of the atoms. The packing function used in MOLREP for the translational search is explained in the context of model preparation. In difficult cases, bioinformatics-based modifications are not sufficient for successful molecular replacement. An approach implemented in MOLREP for solving cases with translational noncrystallographic symmetry is an example of model preparation in which analysis of X-ray data plays an essential role. In addition, two examples are presented in which the X-ray data were used to refine partial models for subsequent use in molecular replacement. FAU - Lebedev, Andrey A AU - Lebedev AA AD - Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, York YO10 5YW, England. lebedev@ysbl.york.ac.uk FAU - Vagin, Alexei A AU - Vagin AA FAU - Murshudov, Garib N AU - Murshudov GN LA - eng GR - 064405/Z/01/A/Wellcome Trust/United Kingdom GR - R01 GM069758-03/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20071205 PL - Denmark TA - Acta Crystallogr D Biol Crystallogr JT - Acta crystallographica. Section D, Biological crystallography JID - 9305878 RN - 0 (Proteins) SB - IM MH - Algorithms MH - Amino Acid Sequence MH - *Computer Simulation MH - Crystallization MH - Crystallography, X-Ray/*methods MH - Models, Molecular MH - Proteins/chemistry/genetics MH - Sequence Alignment MH - *Software MH - Structural Homology, Protein PMC - PMC2394799 OID - NLM: PMC2394799 EDAT- 2007/12/21 09:00 MHDA- 2008/04/01 09:00 CRDT- 2007/12/21 09:00 PHST- 2007/06/09 [received] PHST- 2007/10/10 [accepted] PHST- 2007/12/05 [epublish] AID - S0907444907049839 [pii] AID - 10.1107/S0907444907049839 [doi] PST - ppublish SO - Acta Crystallogr D Biol Crystallogr. 2008 Jan;64(Pt 1):33-9. Epub 2007 Dec 5.