Hi all: I have a problem with grompp I want to making "POPC+protein" file and I search the archieve and follow the process 1.run pdb2gmx for protein only 2.add below parameters into my topology file #include "ffG53a6.itp" #include "lipid.itp" #include "popc.itp" 3.adjust the [ molecules ] section to list the number and type of my components 4.run editconf and genbox 5.run grompp and it shows Fatal error: Atomtype CA not found
*Below is all information it shows* *Can someone help me to solve this problem?* *I am appreciate with that.* *Thaks.* :-) G R O M A C S (-: Getting the Right Output Means no Artefacts in Calculating Stuff :-) VERSION 4.0 (-: Written by David van der Spoel, Erik Lindahl, Berk Hess, and others. Copyright (c) 1991-2000, University of Groningen, The Netherlands. Copyright (c) 2001-2008, The GROMACS development team, check out http://www.gromacs.org for more information. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. :-) grompp (-: Option Filename Type Description ------------------------------------------------------------ -f em.mdp Input, Opt! grompp input file with MD parameters -po mdout.mdp Output grompp input file with MD parameters -c 1UEO-nowater_water.gro Input Structure file: gro g96 pdb tpr tpb tpa -r conf.gro Input, Opt. Structure file: gro g96 pdb tpr tpb tpa -rb conf.gro Input, Opt. Structure file: gro g96 pdb tpr tpb tpa -n index.ndx Input, Opt. Index file -p 1UEO-nowater.top Input Topology file -pp processed.top Output, Opt. Topology file -o 1UEO-nowater_em.tpr Output Run input file: tpr tpb tpa -t traj.trr Input, Opt. Full precision trajectory: trr trj cpt -e ener.edr Input, Opt. Energy file: edr ene Option Type Value Description ------------------------------------------------------ -[no]h bool no Print help info and quit -nice int 0 Set the nicelevel -[no]v bool yes Be loud and noisy -time real -1 Take frame at or first after this time. -[no]rmvsbds bool yes Remove constant bonded interactions with virtual sites -maxwarn int 0 Number of allowed warnings during input processing -[no]zero bool no Set parameters for bonded interactions without defaults to zero instead of generating an error -[no]renum bool yes Renumber atomtypes and minimize number of atomtypes Ignoring obsolete mdp entry 'title' Ignoring obsolete mdp entry 'cpp' Back Off! I just backed up mdout.mdp to ./#mdout.mdp.2# checking input for internal consistency... processing topology... Opening library file /usr/local/md/share/gromacs/top/ffG53a6.itp Opening library file /usr/local/md/share/gromacs/top/ffG53a6nb.itp Opening library file /usr/local/md/share/gromacs/top/ffG53a6bon.itp Opening library file /usr/local/md/share/gromacs/top/ff_dum.itp WARNING 1 [file lipid.itp, line 14]: Overriding atomtype LO WARNING 2 [file lipid.itp, line 15]: Overriding atomtype LOM WARNING 3 [file lipid.itp, line 16]: Overriding atomtype LNL WARNING 4 [file lipid.itp, line 17]: Overriding atomtype LC WARNING 5 [file lipid.itp, line 18]: Overriding atomtype LH1 WARNING 6 [file lipid.itp, line 19]: Overriding atomtype LH2 WARNING 7 [file lipid.itp, line 20]: Overriding atomtype LP WARNING 8 [file lipid.itp, line 21]: Overriding atomtype LOS WARNING 9 [file lipid.itp, line 22]: Overriding atomtype LP2 WARNING 10 [file lipid.itp, line 23]: Overriding atomtype LP3 WARNING 11 [file lipid.itp, line 24]: Overriding atomtype LC3 WARNING 12 [file lipid.itp, line 25]: Overriding atomtype LC2 WARNING 13 [file lipid.itp, line 108]: Overriding non-bonded parameters, old: 0.00238804 3.38411e-06 new LNL C 1 2.387718e-03 2.389594e-06 ------------------------------------------------------- Program grompp, VERSION 4.0 Source code file: toppush.c, line: 793 Fatal error: Atomtype CA not found -- Jenny Hsu, Biotechnology Dept., Ming Chuan University, Taiwan, R.O.C
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