[gmx-users] Atomtype OW not found - spc water model

Carlos Navarrro Retamal cnavarro at utalca.cl
Tue Apr 8 17:24:08 CEST 2014


Hello everyone,  
I'm trying to perform a MD of a mixture of solvent (in my case glycerol+water).  
In order to do that i first obtained the parameters of glycerol on CHARMM on here -> par_all36_carb.prm. To use this parameters on gromacs i used the psf2topol.py script ->https://github.com/resal81/PyTopol, generating a .top and a .itp file respectively.  
Just to try these files, i create a box with 2 molecules of glycerol and add 106 water molecules (SPC)-> Gly_solv.gro file.  
Finally, when i edit the topol.top file i add the next line: #include "charmm27.ff/spc.itp", to include the parameters of the SPC water model, but when i run grommp to make a minimization of the system i got the next error message:   

> Fatal error:  
> Atomtype OW not found  
> For more information and tips for troubleshooting, please check the GROMACS  
> website at http://www.gromacs.org/Documentation/Errors  
but if i remove the water (and of course the include line into the topol.top file) grommp works just fine :/  
I really don't know what may be happening.  
Hope someone can help me.  
Cheers,  
ps-  
These are my files:
topol.top  
> ; Gly_solv.gro  
>  
> ;Include forcefield parameters  
> #include "glycerol.itp"  
> #include "itp_mol_01.itp"  
> #include "charmm27.ff/spc.itp"  
>  
> [ system ]    
> GlycerolSPC in water  
>  
> [ molecules ]  
> GLY        2  
> SOL      106  
glycerol.itp  
> [ defaults ] ;  
> ;nbfunc    comb-rule    gen-pairs    fudgeLJ    fudgeQQ  
> 1          2           yes          1.0       1.0  
> [ atomtypes ]        
> CC322     6 12.0110    0.1   A       0.358141284692      0.2343040    
> HCA2      1  1.0080    0.1   A       0.238760856462      0.1464400    
> OC311     8 15.9994   -0.7   A       0.314487247504      0.8037464    
> HCP1      1  1.0080    0.4   A       0.040001352445      0.1924640    
> CC312     6 12.0110    0.1   A       0.356359487256      0.1338880    
> HCA1      1  1.0080    0.1   A       0.238760856462      0.1882800    
>      
> [ nonbond_params ]  
>    
> [ pairtypes ]      
> CC322  CC322    1    0.338541512893     0.041840000000      
> CC322  HCA2     1    0.288651184677     0.078275472531      
> CC322  OC311    1    0.326514380198     0.183381431383      
> CC322  HCP1     1    0.189271432669     0.089736802707      
> CC322  CC312    1    0.338541512893     0.041840000000      
> CC322  HCA1     1    0.288651184677     0.088756043175      
> HCA2   CC312    1    0.288651184677     0.078275472531      
> OC311  CC312    1    0.326514380198     0.183381431383      
> HCP1   CC312    1    0.189271432669     0.089736802707      
> CC312  CC312    1    0.338541512893     0.041840000000      
> CC312  HCA1     1    0.288651184677     0.088756043175      
>      
> [ bondtypes ]      
> CC322  OC311  1  0.1420  334720.0  
> CC322  HCA2   1  0.1111  258571.2  
> CC322  CC312  1  0.1485  186188.0  
> OC311  HCP1   1  0.0960  456056.0  
> CC312  HCA1   1  0.1111  258571.2  
> CC312  OC311  1  0.1420  334720.0  
>      
> [ angletypes ]    
> CC322  CC312  CC322  5    111.0000     376.56000      0.00000        0.00000  
> CC322  CC312  OC311  5    108.0000     633.45760      0.00000        0.00000  
> CC322  CC312  HCA1   5    110.1000     288.69600      0.21790    18853.10400  
> CC322  OC311  HCP1   5    106.0000     418.40000      0.00000        0.00000  
> HCA2   CC322  CC312  5    110.1000     279.74224      0.21790    18853.10400  
> HCA2   CC322  HCA2   5    109.0000     297.06400      0.18020     4518.72000  
> OC311  CC322  CC312  5    106.0000     418.40000      0.00000        0.00000  
> OC311  CC322  HCA2   5    108.8900     460.24000      0.00000        0.00000  
> CC312  OC311  HCP1   5    106.0000     418.40000      0.00000        0.00000  
> HCA1   CC312  OC311  5    108.8900     460.24000      0.00000        0.00000  
>      
> [ dihedraltypes ]  
> CC322  CC312  OC311  HCP1     9      0.00       1.46440    1  
> CC322  CC312  OC311  HCP1     9      0.00       1.54808    2  
> CC322  CC312  OC311  HCP1     9    180.00       0.79496    3  
> CC322  CC312  CC322  HCA2     9      0.00       0.83680    3  
> CC322  CC312  CC322  OC311    9      0.00       1.46440    1  
> CC322  CC312  CC322  OC311    9      0.00       2.88696    2  
> CC322  CC312  CC322  OC311    9    180.00      11.67336    3  
> HCA2   CC322  OC311  HCP1     9      0.00       0.75312    3  
> HCA2   CC322  CC312  HCA1     9      0.00       0.83680    3  
> HCA2   CC322  CC312  OC311    9      0.00       0.58576    3  
> OC311  CC322  CC312  HCA1     9      0.00       0.58576    3  
> OC311  CC322  CC312  OC311    9    180.00       5.60656    1  
> OC311  CC322  CC312  OC311    9      0.00       4.97896    2  
> OC311  CC322  CC312  OC311    9      0.00      10.79472    3  
> HCP1   OC311  CC322  CC312    9      0.00       1.46440    1  
> HCP1   OC311  CC322  CC312    9      0.00       1.54808    2  
> HCP1   OC311  CC322  CC312    9    180.00       0.79496    3  
> HCA1   CC312  OC311  HCP1     9      0.00       0.75312    3  
>  
> [ dihedraltypes ]  
>  
> [ cmaptypes ]      

itp_mol_01.itp:  
> ;  
>  
> [ moleculetype ]  
> ; Name  nrexcl  
>  GLY    3  
>    
> [ atoms ]          
> ;    14 atoms  
>      1      CC322      1 GLY    C1          1      0.0500     12.0110  
>      2       HCA2      1 GLY    H11         2      0.0900      1.0080  
>      3       HCA2      1 GLY    H12         3      0.0900      1.0080  
>      4      OC311      1 GLY    O1          4     -0.6500     15.9994  
>      5       HCP1      1 GLY    HO1         5      0.4200      1.0080  
>      6      CC312      1 GLY    C2          6      0.1400     12.0110  
>      7       HCA1      1 GLY    H2          7      0.0900      1.0080  
>      8      OC311      1 GLY    O2          8     -0.6500     15.9994  
>      9       HCP1      1 GLY    HO2         9      0.4200      1.0080  
>     10      CC322      1 GLY    C3         10      0.0500     12.0110  
>     11       HCA2      1 GLY    H31        11      0.0900      1.0080  
>     12       HCA2      1 GLY    H32        12      0.0900      1.0080  
>     13      OC311      1 GLY    O3         13     -0.6500     15.9994  
>     14       HCP1      1 GLY    HO3        14      0.4200      1.0080  
>          
> [ bonds ]          
> ;    13 bonds  
>   1    4   1  
>   1    2   1  
>   1    3   1  
>   1    6   1  
>   4    5   1  
>   6    7   1  
>   6    8   1  
>   6   10   1  
>   8    9   1  
>  10   11   1  
>  10   13   1  
>  10   12   1  
>  13   14   1  
>          
> [ pairs ]          
> ;    27 pairs  
>   1   9   1  
>   1  11   1  
>   1  13   1  
>   1  12   1  
>   2   5   1  
>   2   7   1  
>   2   8   1  
>   2  10   1  
>   3   5   1  
>   3   7   1  
>   3   8   1  
>   3  10   1  
>   4   7   1  
>   4   8   1  
>   4  10   1  
>   5   6   1  
>   6  14   1  
>   7   9   1  
>   7  11   1  
>   7  13   1  
>   7  12   1  
>   8  11   1  
>   8  13   1  
>   8  12   1  
>   9  10   1  
>  11  14   1  
>  12  14   1  
>          
> [ angles ]        
> ;    21 angles  
>   1   6  10   5  
>   1   6   8   5  
>   1   6   7   5  
>   1   4   5   5  
>   2   1   6   5  
>   2   1   3   5  
>   3   1   6   5  
>   4   1   6   5  
>   4   1   3   5  
>   4   1   2   5  
>   6  10  12   5  
>   6  10  13   5  
>   6  10  11   5  
>   6   8   9   5  
>   7   6  10   5  
>   7   6   8   5  
>   8   6  10   5  
>  10  13  14   5  
>  11  10  12   5  
>  11  10  13   5  
>  13  10  12   5  
>          
> [ dihedrals ]      
> ;    27 dihedrals  
>   1   6   8   9   9  
>   1   6  10  11   9  
>   1   6  10  13   9  
>   1   6  10  12   9  
>   2   1   4   5   9  
>   2   1   6   7   9  
>   2   1   6   8   9  
>   2   1   6  10   9  
>   3   1   4   5   9  
>   3   1   6   7   9  
>   3   1   6   8   9  
>   3   1   6  10   9  
>   4   1   6   7   9  
>   4   1   6   8   9  
>   4   1   6  10   9  
>   5   4   1   6   9  
>   6  10  13  14   9  
>   7   6   8   9   9  
>   7   6  10  11   9  
>   7   6  10  13   9  
>   7   6  10  12   9  
>   8   6  10  11   9  
>   8   6  10  13   9  
>   8   6  10  12   9  
>   9   8   6  10   9  
>  11  10  13  14   9  
>  12  10  13  14   9  
>      
> [ dihedrals ]      
> ;     0 impropers  
>      
> [ cmap ]          
> ;     0 cmaps  
>      
--  
Carlos Navarrro Retamal
Ingeniero en Bioinformática
Estudiante de doctorado en Ciencias Aplicadas, Universidad de Talca, Chile
Centro de Bioinformática y Simulación Molecular(CBSM)
Universidad de Talca
2 Norte 685, Casilla 721, Talca - Chile   
Teléfono: 56-71-201 798,  
Fax: 56-71-201 561
Email: carlos.navarro87 at gmail.com o cnavarro at utalca.cl



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