[gmx-users] Proline on OPLSSaa

Mauro Puppett esagono at hotmail.com
Fri Feb 8 16:23:21 CET 2008



Hi all,
I'm trying to run a simulation of a proline in water tip5p with OPLSaa ff.
The problem is that it has to be an N-acetyl-methoxyproline and i don't know how to add the methoxy.
I've already tryed adding a new molecule to the .rtp file:

[ APR ]
  [ atoms ]    
    N     opls_239  -0.776797     1
   CA     opls_246  -0.158578     2
   C1     opls_058   0.954250     3
  OS1     opls_062  -0.719990     4
   C2     opls_235   0.808979     5
   OS     opls_059  -0.616492     6
   CD     opls_245  -0.150278     7  
   CB     opls_136  -0.404838     8 
  HB1     opls_140   0.243450     9
   CG     opls_136  -0.450709     10
  HB2     opls_140   0.226125     11 
  HG1     opls_140   0.223126     12
  HG2     opls_140   0.242534     13   
  HD1     opls_140   0.239430     14 
  HD2     opls_140   0.239331     15   
   HA     opls_140   0.262623     16    
   CE     opls_468  -0.252649     17
  HE1     opls_469   0.216104     18
  HE2     opls_469   0.214466     19
  HE3     opls_469   0.212312     20
   OB     opls_236  -0.606932     21
   CF     opls_135  -0.687405     22
  HF1     opls_140   0.262125     23
  HF2     opls_140   0.224449     24
  HF3     opls_140   0.255303     25
  [ bonds ]
    N    CD
    N    C2
    C2   OB
    C2   CF
    CF   HF1
    CF   HF2
    CF   HF3
    CD   HD1
    CD   HD2
    CD   CG
    CG   HG1
    CG   HG2
    CG   CB
    CB   HB1
    CB   HB2
    CB   CA
    CA   N
    CA   HA1
    CA   C1
    C1   OS
    C1   OS1
    OS1  CE
    CE   HE1
    CE   HE1
    CE   HE3  
and it works fine till i run grompp which says:

ERROR 0 [file "proline.top", line 182]:
  No default Ryckaert-Bell. types
ERROR 0 [file "proline.top", line 191]:
  No default Ryckaert-Bell. types
ERROR 0 [file "proline.top", line 193]:
  No default Ryckaert-Bell. types
ERROR 0 [file "proline.top", line 201]:
  No default Ryckaert-Bell. types

This is my .top file:

;	This is your topology file
;	%E
;
; Include forcefield parameters
#include "ffoplsaa.itp"

; Include water topology
#include "tip5p.itp"

#ifdef POSRES_WATER
; Position restraint for each water oxygen
[ position_restraints ]
;  i funct       fcx        fcy        fcz
   1    1       1000       1000       1000
#endif


[ moleculetype ]
; Name            nrexcl
Protein             3

[ atoms ]
;   nr       type  resnr residue  atom   cgnr     charge       mass  typeB    chargeB      massB
     1   opls_239      1    APR      N      1  -0.776797    14.0067   ; qtot -0.7768
     2   opls_246      1    APR     CA      2  -0.158578     12.011   ; qtot -0.9354
     3   opls_058      1    APR     C1      3    0.95425     12.011   ; qtot 0.01887
     4   opls_062      1    APR    OS1      4   -0.71999    15.9994   ; qtot -0.7011
     5   opls_235      1    APR     C2      5   0.808979     12.011   ; qtot 0.1079
     6   opls_059      1    APR     OS      6  -0.616492    15.9994   ; qtot -0.5086
     7   opls_245      1    APR     CD      7  -0.150278     12.011   ; qtot -0.6589
     8   opls_136      1    APR     CB      8  -0.404838     12.011   ; qtot -1.064
     9   opls_140      1    APR    HB1      9    0.24345      1.008   ; qtot -0.8203
    10   opls_136      1    APR     CG     10  -0.450709     12.011   ; qtot -1.271
    11   opls_140      1    APR    HB2     11   0.226125      1.008   ; qtot -1.045
    12   opls_140      1    APR    HG1     12   0.223126      1.008   ; qtot -0.8218
    13   opls_140      1    APR    HG2     13   0.242534      1.008   ; qtot -0.5792
    14   opls_140      1    APR    HD1     14    0.23943      1.008   ; qtot -0.3398
    15   opls_140      1    APR    HD2     15   0.239331      1.008   ; qtot -0.1005
    16   opls_140      1    APR     HA     16   0.262623      1.008   ; qtot 0.1622
    17   opls_468      1    APR     CE     17  -0.252649     12.011   ; qtot -0.09048
    18   opls_469      1    APR    HE1     18   0.216104      1.008   ; qtot 0.1256
    19   opls_469      1    APR    HE2     19   0.214466      1.008   ; qtot 0.3401
    20   opls_469      1    APR    HE3     20   0.212312      1.008   ; qtot 0.5524
    21   opls_236      1    APR     OB     21  -0.606932    15.9994   ; qtot -0.05453
    22   opls_135      1    APR     CF     22  -0.687405     12.011   ; qtot -0.7419
    23   opls_140      1    APR    HF1     23   0.262125      1.008   ; qtot -0.4798
    24   opls_140      1    APR    HF2     24   0.224449      1.008   ; qtot -0.2554
    25   opls_140      1    APR    HF3     25   0.255303      1.008   ; qtot -6.101e-05

[ bonds ]
;  ai    aj funct            c0            c1            c2            c3
    1     2     1 
    1     5     1 
    1     7     1 
    2     3     1 
    2     8     1 
    3     4     1 
    3     6     1 
    4    17     1 
    5    21     1 
    5    22     1 
    7    10     1 
    7    14     1 
    7    15     1 
    8     9     1 
    8    10     1 
    8    11     1 
   10    12     1 
   10    13     1 
   17    18     1 
   17    20     1 
   22    23     1 
   22    24     1 
   22    25     1 

[ pairs ]
;  ai    aj funct            c0            c1            c2            c3
    1     4     1 
    1     6     1 
    1     9     1 
    1    11     1 
    1    12     1 
    1    13     1 
    1    23     1 
    1    24     1 
    1    25     1 
    2    12     1 
    2    13     1 
    2    14     1 
    2    15     1 
    2    17     1 
    2    21     1 
    2    22     1 
    3     5     1 
    3     7     1 
    3     9     1 
    3    10     1 
    3    11     1 
    3    18     1 
    3    20     1 
    4     8     1 
    5     8     1 
    5    10     1 
    5    14     1 
    5    15     1 
    6     8     1 
    6    17     1 
    7     9     1 
    7    11     1 
    7    21     1 
    7    22     1 
    8    14     1 
    8    15     1 
    9    12     1 
    9    13     1 
   11    12     1 
   11    13     1 
   12    14     1 
   12    15     1 
   13    14     1 
   13    15     1 
   21    23     1 
   21    24     1 
   21    25     1 

[ angles ]
;  ai    aj    ak funct            c0            c1            c2            c3
    2     1     5     1 
    2     1     7     1 
    5     1     7     1 
    1     2     3     1 
    1     2     8     1 
    3     2     8     1 
    2     3     4     1 
    2     3     6     1 
    4     3     6     1 
    3     4    17     1 
    1     5    21     1 
    1     5    22     1 
   21     5    22     1 
    1     7    10     1 
    1     7    14     1 
    1     7    15     1 
   10     7    14     1 
   10     7    15     1 
   14     7    15     1 
    2     8     9     1 
    2     8    10     1 
    2     8    11     1 
    9     8    10     1 
    9     8    11     1 
   10     8    11     1 
    7    10     8     1 
    7    10    12     1 
    7    10    13     1 
    8    10    12     1 
    8    10    13     1 
   12    10    13     1 
    4    17    18     1 
    4    17    20     1 
   18    17    20     1 
    5    22    23     1 
    5    22    24     1 
    5    22    25     1 
   23    22    24     1 
   23    22    25     1 
   24    22    25     1 

[ dihedrals ]
;  ai    aj    ak    al funct            c0            c1            c2            c3            c4            c5
    5     1     2     3     3 
    5     1     2     8     3 
    7     1     2     3     3 
    7     1     2     8     3 
    2     1     5    21     3 
    2     1     5    22     3 
    7     1     5    21     3 
    7     1     5    22     3 
    2     1     7    10     3 
    2     1     7    14     3 
    2     1     7    15     3 
    5     1     7    10     3 
    5     1     7    14     3 
    5     1     7    15     3 
    1     2     3     4     3 
    1     2     3     6     3 
    8     2     3     4     3 
    8     2     3     6     3 
    1     2     8     9     3 
    1     2     8    10     3 
    1     2     8    11     3 
    3     2     8     9     3 
    3     2     8    10     3 
    3     2     8    11     3 
    2     3     4    17     3 
    6     3     4    17     3 
    3     4    17    18     3 
    3     4    17    20     3 
    1     5    22    23     3 
    1     5    22    24     3 
    1     5    22    25     3 
   21     5    22    23     3 
   21     5    22    24     3 
   21     5    22    25     3 
    1     7    10     8     3 
    1     7    10    12     3 
    1     7    10    13     3 
   14     7    10     8     3 
   14     7    10    12     3 
   14     7    10    13     3 
   15     7    10     8     3 
   15     7    10    12     3 
   15     7    10    13     3 
    2     8    10     7     3 
    2     8    10    12     3 
    2     8    10    13     3 
    9     8    10     7     3 
    9     8    10    12     3 
    9     8    10    13     3 
   11     8    10     7     3 
   11     8    10    12     3 
   11     8    10    13     3 

; Include Position restraint file
#ifdef POSRES
#include "posre.itp"
#endif

; Include generic topology for ions
#include "ions.itp"

[ system ]
; Name
%E in water

[ molecules ]
; Compound        #mols
Protein             1
SOL              2390

Can somebody pelase tell what I'm doing wrong?
Thanks in advance
Mauro Puppett

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