[gmx-users] parameters for Glucose-6-phosphate

Francesco Carbone fra.carbone8 at gmail.com
Fri Apr 29 18:09:40 CEST 2016


Good afternoon,

I'd like to run a dynamics with a protein (2bhl.pdb) and its substrate
(Glucose-6-phosphate ) to observe how mutants affects the binding.

Following Justin tutorial (thank you Justing for providing it), I use
PRODRG to generate the topology for G6P  and I then included in the protein
topology.

; Include ligand topology
#include "bg6.itp"

BG6                 1

The problem that I'm having is a mismatch between the number of atoms in
the coordinated and the topology once I try to add ions to the system.

Fatal error:
number of coordinates in coordinate file (solv.gro, 226651)
             does not match topology (topol.top, 226644)

THis should be connected with a discrepancy between ligand.pdb and
ligand.itp, which have 20 and 27 atoms respectively.

I tried to remove from the ligand.pdb the 7 atoms that do not have a
counterpart in ligand.itp, but I always get a mismatch:
Fatal error:
number of coordinates in coordinate file (solv.gro, 226663)
             does not match topology (topol.top, 226642)

How can I fix this?
 below I pasted the pdb and itp files for the Glucose-6-phosphate

Thank you,

Francesco

------------------ begin FILES ------------------

 PRODRG COORDS
   27
    1BG6  O1P      1   0.311  12.421   1.455
    1BG6  P        2   0.384  12.355   1.345
    1BG6  O2P      3   0.515  12.411   1.305
    1BG6  O3P      4   0.376  12.208   1.349
    1BG6  O6       5   0.295  12.402   1.219
    1BG6  C6       6   0.153  12.391   1.232
    1BG6  H61      7   0.123  12.288   1.211
    1BG6  H62      8   0.128  12.426   1.332
    1BG6  C5       9   0.082  12.483   1.136
    1BG6  H5      10   0.096  12.586   1.170
    1BG6  O5      11   0.146  12.465   1.008
    1BG6  C1      12   0.090  12.551   0.908
    1BG6  H11     13   0.105  12.655   0.938
    1BG6  O1      14   0.155  12.529   0.787
    1BG6  H12     15   0.141  12.434   0.759
    1BG6  C2      16  -0.058  12.528   0.892
    1BG6  H21     17  -0.075  12.425   0.861
    1BG6  O2      18  -0.109  12.617   0.794
    1BG6  H22     19  -0.094  12.712   0.823
    1BG6  C3      20  -0.127  12.551   1.026
    1BG6  H31     21  -0.108  12.653   1.059
    1BG6  O3      22  -0.268  12.529   1.014
    1BG6  H32     23  -0.285  12.435   0.983
    1BG6  C4      24  -0.067  12.454   1.127
    1BG6  H41     25  -0.081  12.352   1.092
    1BG6  O4      26  -0.127  12.472   1.254
    1BG6  H42     27  -0.113  12.567   1.284
   0.95014   0.95014   0.95014


;
;
;       This file was generated by PRODRG version AA100323.0717
;       PRODRG written/copyrighted by Daan van Aalten
;       and Alexander Schuettelkopf
;
;       Questions/comments to dava at davapc1.bioch.dundee.ac.uk
;
;       When using this software in a publication, cite:
;       A. W. Schuettelkopf and D. M. F. van Aalten (2004).
;       PRODRG - a tool for high-throughput crystallography
;       of protein-ligand complexes.
;       Acta Crystallogr. D60, 1355--1363.
;
;

[ moleculetype ]
; Name nrexcl
BG6      3

[ atoms ]
;   nr      type  resnr resid  atom  cgnr   charge     mass
     1        OM     1  BG6     O1P     1   -0.715  15.9994
     2         P     1  BG6       P     1    1.318  30.9738
     3        OM     1  BG6     O2P     1   -0.714  15.9994
     4        OM     1  BG6     O3P     1   -0.714  15.9994
     5        OA     1  BG6      O6     1   -0.197  15.9994
     6       CH2     1  BG6      C6     1    0.022  14.0270
     7       CH1     1  BG6      C5     2    0.195  13.0190
     8        OA     1  BG6      O5     2   -0.195  15.9994
     9       CH1     1  BG6      C1     2    0.195  13.0190
    10        OA     1  BG6      O1     2   -0.203  15.9994
    11         H     1  BG6     H12     2    0.008   1.0080
    12       CH1     1  BG6      C2     3    0.146  13.0190
    13        OA     1  BG6      O2     3   -0.156  15.9994
    14         H     1  BG6     H22     3    0.010   1.0080
    15       CH1     1  BG6      C3     3    0.146  13.0190
    16        OA     1  BG6      O3     3   -0.156  15.9994
    17         H     1  BG6     H32     3    0.010   1.0080
    18       CH1     1  BG6      C4     4    0.146  13.0190
    19        OA     1  BG6      O4     4   -0.156  15.9994
    20         H     1  BG6     H42     4    0.010   1.0080

[ bonds ]
; ai  aj  fu    c0, c1, ...
   2   1   2    0.148   8600000.0    0.148   8600000.0 ;     P  O1P
   2   3   2    0.148   8600000.0    0.148   8600000.0 ;     P  O2P
   2   4   2    0.148   8600000.0    0.148   8600000.0 ;     P  O3P
   2   5   2    0.161   4840000.0    0.161   4840000.0 ;     P   O6
   6   5   2    0.143   8180000.0    0.143   8180000.0 ;    C6   O6
   7   6   2    0.153   7150000.0    0.153   7150000.0 ;    C5   C6
   7   8   2    0.144   6100000.0    0.144   6100000.0 ;    C5   O5
   7  18   2    0.152   5430000.0    0.152   5430000.0 ;    C5   C4
   9   8   2    0.144   6100000.0    0.144   6100000.0 ;    C1   O5
   9  10   2    0.144   6100000.0    0.144   6100000.0 ;    C1   O1
   9  12   2    0.152   5430000.0    0.152   5430000.0 ;    C1   C2
  10  11   2    0.100  15700000.0    0.100  15700000.0 ;    O1  H12
  12  13   2    0.144   6100000.0    0.144   6100000.0 ;    C2   O2
  12  15   2    0.152   5430000.0    0.152   5430000.0 ;    C2   C3
  13  14   2    0.100  15700000.0    0.100  15700000.0 ;    O2  H22
  15  16   2    0.144   6100000.0    0.144   6100000.0 ;    C3   O3
  15  18   2    0.152   5430000.0    0.152   5430000.0 ;    C3   C4
  16  17   2    0.100  15700000.0    0.100  15700000.0 ;    O3  H32
  18  19   2    0.144   6100000.0    0.144   6100000.0 ;    C4   O4
  19  20   2    0.100  15700000.0    0.100  15700000.0 ;    O4  H42

[ pairs ]
; ai  aj  fu    c0, c1, ...
   1   6   1                                           ;   O1P   C6
   2   7   1                                           ;     P   C5
   3   6   1                                           ;   O2P   C6
   4   6   1                                           ;   O3P   C6
   5   8   1                                           ;    O6   O5
   5  18   1                                           ;    O6   C4
   6   9   1                                           ;    C6   C1
   6  15   1                                           ;    C6   C3
   6  19   1                                           ;    C6   O4
   7  10   1                                           ;    C5   O1
   7  12   1                                           ;    C5   C2
   7  16   1                                           ;    C5   O3
   7  20   1                                           ;    C5  H42
   8  11   1                                           ;    O5  H12
   8  13   1                                           ;    O5   O2
   8  15   1                                           ;    O5   C3
   8  19   1                                           ;    O5   O4
   9  14   1                                           ;    C1  H22
   9  16   1                                           ;    C1   O3
   9  18   1                                           ;    C1   C4
  10  13   1                                           ;    O1   O2
  10  15   1                                           ;    O1   C3
  11  12   1                                           ;   H12   C2
  12  17   1                                           ;    C2  H32
  12  19   1                                           ;    C2   O4
  13  16   1                                           ;    O2   O3
  13  18   1                                           ;    O2   C4
  14  15   1                                           ;   H22   C3
  15  20   1                                           ;    C3  H42
  16  19   1                                           ;    O3   O4
  17  18   1                                           ;   H32   C4

[ angles ]
; ai  aj  ak  fu    c0, c1, ...
   1   2   3   2    120.0       780.0    120.0       780.0 ;   O1P    P
 O2P
   1   2   4   2    120.0       780.0    120.0       780.0 ;   O1P    P
 O3P
   1   2   5   2    109.6       450.0    109.6       450.0 ;   O1P    P
O6
   3   2   4   2    120.0       780.0    120.0       780.0 ;   O2P    P
 O3P
   3   2   5   2    109.6       450.0    109.6       450.0 ;   O2P    P
O6
   4   2   5   2    109.6       450.0    109.6       450.0 ;   O3P    P
O6
   2   5   6   2    120.0       530.0    120.0       530.0 ;     P   O6
C6
   5   6   7   2    109.5       520.0    109.5       520.0 ;    O6   C6
C5
   6   7   8   2    109.5       320.0    109.5       320.0 ;    C6   C5
O5
   6   7  18   2    109.5       520.0    109.5       520.0 ;    C6   C5
C4
   8   7  18   2    109.5       520.0    109.5       520.0 ;    O5   C5
C4
   7   8   9   2    109.5       380.0    109.5       380.0 ;    C5   O5
C1
   8   9  10   2    109.5       320.0    109.5       320.0 ;    O5   C1
O1
   8   9  12   2    109.5       520.0    109.5       520.0 ;    O5   C1
C2
  10   9  12   2    109.5       520.0    109.5       520.0 ;    O1   C1
C2
   9  10  11   2    109.5       450.0    109.5       450.0 ;    C1   O1
 H12
   9  12  13   2    109.5       520.0    109.5       520.0 ;    C1   C2
O2
   9  12  15   2    109.5       520.0    109.5       520.0 ;    C1   C2
C3
  13  12  15   2    109.5       520.0    109.5       520.0 ;    O2   C2
C3
  12  13  14   2    109.5       450.0    109.5       450.0 ;    C2   O2
 H22
  12  15  16   2    109.5       520.0    109.5       520.0 ;    C2   C3
O3
  12  15  18   2    109.5       520.0    109.5       520.0 ;    C2   C3
C4
  16  15  18   2    109.5       520.0    109.5       520.0 ;    O3   C3
C4
  15  16  17   2    109.5       450.0    109.5       450.0 ;    C3   O3
 H32
   7  18  15   2    109.5       520.0    109.5       520.0 ;    C5   C4
C3
   7  18  19   2    109.5       520.0    109.5       520.0 ;    C5   C4
O4
  15  18  19   2    109.5       520.0    109.5       520.0 ;    C3   C4
O4
  18  19  20   2    109.5       450.0    109.5       450.0 ;    C4   O4
 H42

[ dihedrals ]
; ai  aj  ak  al  fu    c0, c1, m, ...
   2   1   4   3   2     35.3  334.8       35.3  334.8   ; imp     P  O1P
 O3P  O2P
   7   6  18   8   2     35.3  334.8       35.3  334.8   ; imp    C5   C6
C4   O5
   9   8  12  10   2     35.3  334.8       35.3  334.8   ; imp    C1   O5
C2   O1
  12   9  13  15   2     35.3  334.8       35.3  334.8   ; imp    C2   C1
O2   C3
  15  12  18  16   2     35.3  334.8       35.3  334.8   ; imp    C3   C2
C4   O3
  18  19   7  15   2     35.3  334.8       35.3  334.8   ; imp    C4   O4
C5   C3
   6   5   2   1   1      0.0    3.1 2      0.0    3.1 2 ; dih    C6   O6
 P  O1P
   7   6   5   2   1      0.0    1.3 3      0.0    1.3 3 ; dih    C5   C6
O6    P
  18   7   6   5   1      0.0    5.9 3      0.0    5.9 3 ; dih    C4   C5
C6   O6
   6   7   8   9   1      0.0    3.8 3      0.0    3.8 3 ; dih    C6   C5
O5   C1
  19  18   7   6   1      0.0    5.9 3      0.0    5.9 3 ; dih    O4   C4
C5   C6
  12   9   8   7   1      0.0    3.8 3      0.0    3.8 3 ; dih    C2   C1
O5   C5
   8   9  10  11   1      0.0    1.3 3      0.0    1.3 3 ; dih    O5   C1
O1  H12
  15  12   9   8   1      0.0    5.9 3      0.0    5.9 3 ; dih    C3   C2
C1   O5
   9  12  13  14   1      0.0    1.3 3      0.0    1.3 3 ; dih    C1   C2
O2  H22
  18  15  12   9   1      0.0    5.9 3      0.0    5.9 3 ; dih    C4   C3
C2   C1
  12  15  16  17   1      0.0    1.3 3      0.0    1.3 3 ; dih    C2   C3
O3  H32
  19  18  15  12   1      0.0    5.9 3      0.0    5.9 3 ; dih    O4   C4
C3   C2
   7  18  19  20   1      0.0    1.3 3      0.0    1.3 3 ; dih    C5   C4
O4  H42


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