[gmx-users] Editconf error

Jorge Dagnino jdagnino at gmail.com
Fri May 22 18:06:12 CEST 2015


Here are the coordinates from my pdb file:

ATOM      1  N   MET G  27      69.331  43.147  76.443  1.00  0.00
  N
ATOM      2  CA  MET G  27      68.996  44.047  75.331  1.00  0.00
  C
ATOM      3  C   MET G  27      67.818  43.550  74.510  1.00  0.00
  C
ATOM      4  O   MET G  27      66.981  44.264  73.969  1.00  0.00
  O
ATOM      5  CB  MET G  27      70.152  44.201  74.325  1.00  0.00
  C
ATOM      6  CG  MET G  27      70.024  45.547  73.614  1.00  0.00
  C
ATOM      7  SD  MET G  27      70.710  46.841  74.678  1.00  0.00
  S
ATOM      8  CE  MET G  27      70.252  48.118  73.481  1.00  0.00
  C
ATOM      9  N   ALA G  28      67.504  42.250  74.523  1.00  0.00
  N
ATOM     10  CA  ALA G  28      66.247  41.666  74.095  1.00  0.00
  C
ATOM     11  C   ALA G  28      64.968  42.391  74.469  1.00  0.00
  C
ATOM     12  O   ALA G  28      64.064  42.543  73.651  1.00  0.00
  O
ATOM     13  CB  ALA G  28      66.323  40.167  74.396  1.00  0.00
  C
ATOM     14  N   GLU G  29      64.839  42.732  75.756  1.00  0.00
  N
ATOM     15  CA  GLU G  29      63.656  43.315  76.334  1.00  0.00
  C
ATOM     16  C   GLU G  29      63.567  44.789  75.955  1.00  0.00
  C
ATOM     17  O   GLU G  29      62.480  45.354  75.850  1.00  0.00
  O
ATOM     18  CB  GLU G  29      63.662  43.143  77.854  1.00  0.00
  C
ATOM     19  CG  GLU G  29      64.822  43.835  78.553  1.00  0.00
  C
ATOM     20  CD  GLU G  29      64.794  43.644  80.055  1.00  0.00
  C
ATOM     21  OE1 GLU G  29      63.801  44.058  80.689  1.00  0.00
  O
ATOM     22  OE2 GLU G  29      65.765  43.078  80.601  1.00  0.00
  O1-

And here are the coordinates from the .gro file

Giant Rising Ordinary Mutants for A Clerical Setup
16231
   27MET      N    1   6.933   4.315   7.644
   27MET     H1    2   7.011   4.352   7.695
   27MET     H2    3   6.854   4.307   7.705
   27MET     H3    4   6.957   4.224   7.608
   27MET     CA    5   6.900   4.405   7.533
   27MET     HA    6   6.878   4.489   7.582
   27MET     CB    7   7.015   4.420   7.432
   27MET    HB1    8   7.103   4.416   7.481
   27MET    HB2    9   7.011   4.346   7.365
   27MET     CG   10   7.002   4.555   7.361
   27MET    HG1   11   7.052   4.545   7.275
   27MET    HG2   12   6.905   4.567   7.343
   27MET     SD   13   7.071   4.684   7.468
   27MET     CE   14   7.025   4.812   7.348
   27MET    HE1   15   7.053   4.901   7.383
   27MET    HE2   16   7.071   4.794   7.261
   27MET    HE3   17   6.926   4.811   7.334
   27MET      C   18   6.782   4.355   7.451
   27MET      O   19   6.698   4.426   7.397
   28ALA      N   20   6.750   4.225   7.452
   28ALA      H   21   6.820   4.162   7.486
   28ALA     CA   22   6.625   4.167   7.410
   28ALA     HA   23   6.620   4.184   7.311
   28ALA     CB   24   6.632   4.017   7.440
   28ALA    HB1   25   6.547   3.973   7.411
   28ALA    HB2   26   6.709   3.976   7.389
   28ALA    HB3   27   6.646   4.003   7.538
   28ALA      C   28   6.497   4.239   7.447
   28ALA      O   29   6.406   4.254   7.365
   29GLU      N   30   6.484   4.273   7.576
   29GLU      H   31   6.562   4.257   7.636
   29GLU     CA   32   6.366   4.332   7.633
   29GLU     HA   33   6.289   4.281   7.594
   29GLU     CB   34   6.366   4.314   7.785
   29GLU    HB1   35   6.281   4.352   7.822
   29GLU    HB2   36   6.371   4.217   7.806
   29GLU     CG   37   6.482   4.384   7.855
   29GLU    HG1   38   6.568   4.346   7.820
   29GLU    HG2   39   6.478   4.481   7.836
   29GLU     CD   40   6.479   4.364   8.005
   29GLU    OE1   41   6.380   4.406   8.069
   29GLU    OE2   42   6.576   4.308   8.060
   29GLU      C   43   6.357   4.479   7.595
   29GLU      O   44   6.248   4.535   7.585

and this is the output from editconf.

Giant Rising Ordinary Mutants for A Clerical Setup
16231
   27MET      N    1    -nan    -nan    -nan
   27MET     H1    2    -nan    -nan    -nan
   27MET     H2    3    -nan    -nan    -nan
   27MET     H3    4    -nan    -nan    -nan
   27MET     CA    5    -nan    -nan    -nan
   27MET     HA    6    -nan    -nan    -nan
   27MET     CB    7    -nan    -nan    -nan
   27MET    HB1    8    -nan    -nan    -nan
   27MET    HB2    9    -nan    -nan    -nan
   27MET     CG   10    -nan    -nan    -nan
   27MET    HG1   11    -nan    -nan    -nan
   27MET    HG2   12    -nan    -nan    -nan
   27MET     SD   13    -nan    -nan    -nan
   27MET     CE   14    -nan    -nan    -nan
   27MET    HE1   15    -nan    -nan    -nan
   27MET    HE2   16    -nan    -nan    -nan
   27MET    HE3   17    -nan    -nan    -nan
   27MET      C   18    -nan    -nan    -nan
   27MET      O   19    -nan    -nan    -nan

I hope that this helps.
Thanks


2015-05-20 22:28 GMT-03:00 Justin Lemkul <jalemkul at vt.edu>:

>
>
> On 5/20/15 5:27 PM, Jorge Dagnino wrote:
>
>> Dear GMX users.
>>
>> Im trying to create my system and When i use pdb2gmx everything seems ok.
>>
>> gmx pdb2gmx -f trim.pdb -o trim.gro -water spce -chainsep id
>>
>> Including chain 1 in system: 3235 atoms 203 residues
>> Including chain 2 in system: 2531 atoms 161 residues
>> Including chain 3 in system: 2546 atoms 161 residues
>> Including chain 4 in system: 2531 atoms 161 residues
>> Including chain 5 in system: 2546 atoms 161 residues
>> Including chain 6 in system: 2842 atoms 169 residues
>> Now there are 16231 atoms and 1016 residues
>> Total mass in system 115288.734 a.m.u.
>> Total charge in system -17.000 e
>>
>> Writing coordinate file...
>>
>> --------- PLEASE NOTE ------------
>> You have successfully generated a topology from: trim.pdb.
>> The OplsaaPBS force field and the spce water model are used.
>>
>> Then when i use the editconf command :
>>
>> gmx editconf -f trim.gro -bt dodecahedron -o box -c -d 1.0
>>
>>
>> Read 16231 atoms
>> Volume: 60.3503 nm^3, corresponds to roughly 27100 electrons
>> No velocities found
>>      system size : 11.777 11.005  6.369 (nm)
>>      diameter    : 12.737               (nm)
>>      center      :   -nan   -nan   -nan (nm)
>>      box vectors :  4.144  4.582  3.178 (nm)
>>      box angles  :  90.00  90.00  90.00 (degrees)
>>      box volume  :  60.35               (nm^3)
>>      shift       :   -nan   -nan   -nan (nm)
>> new center      :   -nan   -nan   -nan (nm)
>> new box vectors : 14.737 14.737 14.737 (nm)
>> new box angles  :  60.00  60.00  90.00 (degrees)
>> new box volume  :2262.99               (nm^3)
>>
>> and the ouptut file looks like this.
>>
>> Giant Rising Ordinary Mutants for A Clerical Setup
>> 16231
>>     27MET      N    1    -nan    -nan    -nan
>>     27MET     H1    2    -nan    -nan    -nan
>>     27MET     H2    3    -nan    -nan    -nan
>>     27MET     H3    4    -nan    -nan    -nan
>>     27MET     CA    5    -nan    -nan    -nan
>>
>> I try to make a bigger box manually, also change the box shape and the
>> distance but i have the same result,
>> This is my first time with this kind of error, what is wrong? what am i
>> missing?
>>
>
> Hard to say; I've never seen anything like this.  The 'nan' means "not a
> number" so the coordinates are junk.  Are the coordinates in trim.pdb and
> trim.gro sound?
>
> -Justin
>
> --
> ==================================================
>
> Justin A. Lemkul, Ph.D.
> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>
> Department of Pharmaceutical Sciences
> School of Pharmacy
> Health Sciences Facility II, Room 629
> University of Maryland, Baltimore
> 20 Penn St.
> Baltimore, MD 21201
>
> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
> http://mackerell.umaryland.edu/~jalemkul
>
> ==================================================
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-- 
JORGE DAGNINO LEONE
Bioquímico
Magíster en Bioquímica y Bioinformática
Estudiante de Doctorado en Ciencias Biológicas.
Facultad de Ciencias Biológicas
Laboratorio de Biofísica Molecular
Universidad de Concepción


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