[gmx-users] Fatal error: number of coordinates in coordinate file does not match topology

ahmet yıldırım ahmedo047 at gmail.com
Thu Apr 14 20:05:11 CEST 2011


Dear Justin,

Thanks for your valuable helps. How should I rearranged the conf.gro file
for 6 EDO ligand?  is the following conf.gro mistake?

*conf.gro:*
MTA/SAH NUCLEOSIDASE; 5 NUCLEOSIDASE
 5354
    2GLN      N    1   1.458  -1.158   0.739
    2GLN     H1    2   1.520  -1.083   0.763
...
  485HOH    HW1 5333   0.221  -3.864  -2.291
  485HOH    HW2 5334   0.303  -3.946  -2.407
    1EDO  OAB      1   0.625  -3.071  -0.171
    1EDO  HAA      2   0.698  -3.048  -0.107
    1EDO  CAA      3   0.596  -3.211  -0.163
    1EDO  CAC      4   0.486  -3.247  -0.261
    1EDO  OAD      5   0.365  -3.179  -0.224
    1EDO  HAB      6   0.292  -3.203  -0.288
    1TRS  O1       1   1.825  -3.900   0.047
    1TRS  HAA      2   1.853  -3.860  -0.040
    1TRS  C1       3   1.712  -3.977   0.028
    1TRS  C        4   1.659  -4.044   0.150
    1TRS  C3       5   1.576  -3.946   0.226
    1TRS  O3       6   1.634  -3.824   0.256
    1TRS  HAC      7   1.569  -3.768   0.307
    1TRS  N        8   1.582  -4.159   0.113
    1TRS  HAE      9   1.547  -4.204   0.195
    1TRS  HAF     10   1.505  -4.131   0.056
    1TRS  HAD     11   1.639  -4.223   0.062
    1TRS  C2      12   1.776  -4.085   0.233
    1TRS  O2      13   1.887  -4.122   0.160
    1TRS  HAB     14   1.961  -4.148   0.222

   8.13100   7.04165  13.54850   0.00000   0.00000  -4.06550   0.00000
0.00000   0.00000

14 Nisan 2011 20:15 tarihinde Justin A. Lemkul <jalemkul at vt.edu> yazdı:

>
>
> ahmet yıldırım wrote:
>
>> Dear Justin,
>>
>> I built .rtp entries for two ligands using (
>> http://davapc1.bioch.dundee.ac.uk/prodrg/). I added to the topol.top the
>> following parts:
>> #include "TRS.itp"
>> #include "EDO.itp"
>>
>
> Well, either pdb2gmx built the molecules into your topology or you're
> #including them in this manner, you should not do both.
>
>  TRS                 1
>> EDO                 6
>>
>
> So this is part of your [molecules] directive?  If you've got six copies of
> EDO, that's likely where the disconnect comes from - you only had one in
> your previous coordinate file snippet.
>
>
>  Furthermore I added the number of atoms (20) in the second line of the
>>
>
> If you have 6 EDO, the necessary addition is more than just 20.
>
>
>  .gro file. may the problem related to pdb file (3NM4.pdb)? Because  -OH
>> groups seems as -O. isn't it? maybe I'm wrong. What would you recommend?
>>
>>
> Generally H atoms are not present in crystal structures.  If your ligands
> require certain H atoms, then you must do one of two things:
>
> 1. Add all the necessary hydrogen atoms to the protein and ligands and run
> pdb2gmx.
>
> 2. Have no H atoms present in the initial coordinate file and build
> suitable .hdb entries for your ligands so they will be constructed from
> existing atoms.
>
> It seems like you're applying several different methods at once.  There are
> protein-ligand tutorials that you may find useful for keeping all of this
> straight (I recommend my own):
>
> http://www.gromacs.org/Documentation/Tutorials#Protein-Ligand_Systems
>
> -Justin
>
>  2011/4/14 Justin A. Lemkul <jalemkul at vt.edu <mailto:jalemkul at vt.edu>>
>>
>>
>>
>>
>>    ahmet yıldırım wrote:
>>
>>        Dear users,
>>
>>        pdb2gmx -f xxx.pdb
>>        water:spc
>>        forcefield:43a1
>>        editconf -f conf.gro -bt cubic -d 1.0 -o box.gro
>>        genbox -cp box.gro -cs spc216.gro -p topol.top -o solvated.gro
>>        grompp -f em.mdp -p topol.top -c solvated.gro -o em.tpr
>>        *Fatal error:*
>>        number of coordinates in coordinate file (solvated.gro, 106523)
>>        does not match topology (topol.top, 106553)
>>        I look at gmx-user search. But I dont be able to solved the
>>        problem. Then I look at conf.gro and box.gro. I recognised the
>>        there is not the TRS ligand in the box.gro file. What reason?
>>
>>
>>    Based on your workflow, it looks as is you never added it in.  If
>>    conf.gro came from pdb2gmx, did you build .rtp entries for your
>>    ligands, or just #include .itp files after the fact?  If the latter,
>>    then you have to modify the coordinate file (conf.gro) to include
>>    these molecules.  If you did this but did not correctly increment
>>    the number of atoms in the second line of the .gro file, likely
>>    anything with a higher atom number got truncated.  If the conf.gro
>>    file you show below is indeed what you used, though, I see no reason
>>    why this should have happened except that perhaps you left out a
>>    step you thought you had done previously.
>>
>>    The difference in the coordinate file vs. topology is 30 atoms,
>>    which is more than both of your ligands (20 atoms), so your problem
>>    likely lies elsewhere.
>>
>>    -Justin
>>
>>
>>        Thanks in advance
>>
>>        _*conf.gro:*_
>>        MTA/SAH NUCLEOSIDASE; 5 NUCLEOSIDASE
>>         5354
>>           2GLN      N    1   1.458  -1.158   0.739
>>           2GLN     H1    2   1.520  -1.083   0.763
>>        ...
>>         485HOH    HW1 5333   0.221  -3.864  -2.291
>>         485HOH    HW2 5334   0.303  -3.946  -2.407
>>           1EDO  OAB      1   0.625  -3.071  -0.171
>>           1EDO  HAA      2   0.698  -3.048  -0.107
>>           1EDO  CAA      3   0.596  -3.211  -0.163
>>           1EDO  CAC      4   0.486  -3.247  -0.261
>>           1EDO  OAD      5   0.365  -3.179  -0.224
>>           1EDO  HAB      6   0.292  -3.203  -0.288
>>           1TRS  O1       1   1.825  -3.900   0.047
>>           1TRS  HAA      2   1.853  -3.860  -0.040
>>           1TRS  C1       3   1.712  -3.977   0.028
>>           1TRS  C        4   1.659  -4.044   0.150
>>           1TRS  C3       5   1.576  -3.946   0.226
>>           1TRS  O3       6   1.634  -3.824   0.256
>>           1TRS  HAC      7   1.569  -3.768   0.307
>>           1TRS  N        8   1.582  -4.159   0.113
>>           1TRS  HAE      9   1.547  -4.204   0.195
>>           1TRS  HAF     10   1.505  -4.131   0.056
>>           1TRS  HAD     11   1.639  -4.223   0.062
>>           1TRS  C2      12   1.776  -4.085   0.233
>>           1TRS  O2      13   1.887  -4.122   0.160
>>           1TRS  HAB     14   1.961  -4.148   0.222
>>          8.13100   7.04165  13.54850   0.00000   0.00000  -4.06550
>>  0.00000   0.00000   0.00000
>>
>>
>>
>>
>>
>>        --         Ahmet YILDIRIM
>>
>>
>>    --     ========================================
>>
>>    Justin A. Lemkul
>>    Ph.D. Candidate
>>    ICTAS Doctoral Scholar
>>    MILES-IGERT Trainee
>>    Department of Biochemistry
>>    Virginia Tech
>>    Blacksburg, VA
>>    jalemkul[at]vt.edu <http://vt.edu> | (540) 231-9080
>>
>>    http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
>>
>>    ========================================
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>>
>>
>>
>> --
>> Ahmet YILDIRIM
>>
>
> --
> ========================================
>
> Justin A. Lemkul
> Ph.D. Candidate
> ICTAS Doctoral Scholar
> MILES-IGERT Trainee
> Department of Biochemistry
> Virginia Tech
> Blacksburg, VA
> jalemkul[at]vt.edu | (540) 231-9080
> http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
>
> ========================================
> --
> gmx-users mailing list    gmx-users at gromacs.org
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> Please search the archive at
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-- 
Ahmet YILDIRIM
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