[gmx-users] Any ideas: Fatal error: Atom O in residue HEM XXX was not found in rtp entry while sorting atoms.

Matthew Fisher matthew.fisher at stcatz.ox.ac.uk
Tue Nov 20 22:48:25 CET 2018


Dear all,


I wonder if anyone could offer some advice on a current issue I've got. I'm currently trying to simulate a Heme protein using GROMACS and the AMBER99SB-ildn force field. Parametisation for this system has been done previously for AMBER (

https://doi.org/10.1002/jcc.21922
) and through consulting the manual and a handy tutorial off the mailing list (https://mailman-1.sys.kth.se/pipermail/gromacs.org_gmx-users/2015-September/101115.html) , I've been able to adapt the parameters into the GROMACS force field. The protein is a 458 aa polypeptide with a heme group ligated via a Fe-S bond to a CYS at position 400.


My issue is, when running pdb2gmx (gmx pdb2gmx -f XXX1.pdb -o cyp.gro -merge all), I get this output:

Atom O in residue HEM 471 was not found in rtp entry HEME with 74 atoms
while sorting atoms.

Only problem is, I've accounted for all the oxygen atoms in the rtp/pdb files, so I'm a little stuck as to what the problem is? Does anyone have any ideas at this stage; it would be greatly appreciated? Similar work has been done in the literature so I know this simulation is possible in GROMACS.

Thanks,
Matt

[ HEME ]
 [ atoms ]
    NC   ncr  -0.0333    1
   C1C    ccr          -0.0836     2
   C4C    ccr          -0.0148     3
   C2C    ccr          -0.0025     4
   C3C    ccr          -0.1636     5
   CHD    cgr           0.0470     6
   HHD    har           0.0773     7
   C1D    cdr          -0.1256     8
    ND    ndr           0.0685     9
   C4D    cdr          -0.0340    10
   C3D    cdr          -0.0325    11
   C2D    cdr           0.0288    12
   CHA    cgr          -0.0124    13
   HHA    har           0.1920    14
   C1A    ccr          -0.0365    15
   C2A    ccr          -0.0626    16
   C4A    ccr          -0.0543    17
    NA    ncr          -0.0015    18
   C3A    ccr           0.0097    19
   CHB    cgr           0.0210    20
   HHB    har           0.1004    21
   C1B    cdr          -0.1156    22
   C2B    cdr           0.0805    23
    NB    ndr           0.0339    24
   C4B    cdr          -0.0866    25
   CHC    cgr           0.0569    26
   HHC    har           0.0740    27
    FE    fer           0.2620    28
   C3B    cdr          -0.0237    29
   CAB    ccr          -0.0963    30
   HAB    har           0.1169    31
   CBB    cdr          -0.3967    32
  HBB1    har           0.1410    33
  HBB2    har           0.1410    34
   CAC    cdr           0.0915    35
   HAC    har           0.0767    36
   CBC    ccr          -0.4715    37
  HBC1    har           0.1517    38
  HBC2    har           0.1517    39
   CMB    c3r          -0.1258    40
  HMB1    hcr           0.0397    41
  HMB2    hcr           0.0397    42
  HMB3    hcr           0.0397    43
   CMC    c3r           0.0353    44
  HMC1    hcr           0.0049    45
  HMC2    hcr           0.0049    46
  HMC3    hcr           0.0049    47
   CMD    c3r          -0.2123    48
  HMD1    hcr           0.0653    49
  HMD2    hcr           0.0653    50
  HMD3    hcr           0.0653    51
   CMA    c3r          -0.0747    52
  HMA1    hcr           0.0306    53
  HMA2    hcr           0.0306    54
  HMA3    hcr           0.0306    55
   CAA    c3r          -0.0115    56
  HAA1    hcr           0.0253    57
  HAA2    hcr           0.0253    58
   CAD    c3r          -0.0659    59
  HAD1    hcr           0.0364    60
  HAD2    hcr           0.0364    61
   CBA    c3r          -0.0304    62
  HBA1    h1r          -0.0023    63
  HBA2    h1r          -0.0023    64
   CBD    c3r          -0.0022    65
  HBD1    h1r           0.0140    66
  HBD2    h1r           0.0140    67
   CGD    cr            0.5749    68
   CGA    cr            0.6402    69
   O1A    or           -0.6508    70
   O1D    or           -0.6552    71
   O2A    or           -0.6508    72
   O2D    or           -0.6552    73
    O1    oar          -0.3729    74

PDB extract

TER    3758      ILE B 458
HETATM 3759  CAA HEM B 471       1.755  18.131 -15.889  1.00 15.51           C
HETATM 3760  CAB HEM B 471      -4.791  24.485 -11.701  1.00 20.40           C
HETATM 3761  CAC HEM B 471       2.533  27.567 -10.509  1.00 18.35           C
HETATM 3762  CAD HEM B 471       5.798  21.469 -14.505  1.00 17.29           C
HETATM 3763  NA  HEM B 471       0.386  21.111 -13.959  1.00 17.77           N
HETATM 3764  CBA HEM B 471       1.855  18.352 -17.427  1.00 19.79           C
HETATM 3765  CBB HEM B 471      -5.966  23.773 -11.004  1.00 26.67           C
HETATM 3766  CBC HEM B 471       2.417  28.024  -9.048  1.00 27.22           C
HETATM 3767  CBD HEM B 471       6.499  20.615 -13.335  1.00 17.56           C
HETATM 3768  NB  HEM B 471      -1.463  22.941 -12.743  1.00 15.71           N
HETATM 3769  CGA HEM B 471       2.524  17.345 -18.205  1.00 19.93           C
HETATM 3770  CGD HEM B 471       7.641  19.908 -13.762  1.00 20.58           C
HETATM 3771  ND  HEM B 471       2.513  22.853 -13.219  1.00 16.35           N
HETATM 3772  CHA HEM B 471       2.762  20.715 -14.442  1.00 17.63           C
HETATM 3773  CHB HEM B 471      -2.057  20.891 -14.014  1.00 20.44           C
HETATM 3774  CHC HEM B 471      -1.724  25.024 -11.443  1.00 17.83           C
HETATM 3775  CHD HEM B 471       3.065  25.025 -12.165  1.00 21.60           C
HETATM 3776  CMA HEM B 471      -1.524  18.310 -15.643  1.00 17.42           C
HETATM 3777  CMB HEM B 471      -4.986  21.674 -13.454  1.00 20.09           C
HETATM 3778  CMC HEM B 471      -0.770  27.534  -9.911  1.00 19.11           C
HETATM 3779  CMD HEM B 471       5.977  24.412 -13.134  1.00 20.15           C
HETATM 3780  C1A HEM B 471       1.411  20.355 -14.511  1.00 18.03           C
HETATM 3781  C1B HEM B 471      -2.388  22.049 -13.283  1.00 19.13           C
HETATM 3782  C1C HEM B 471      -0.394  25.357 -11.365  1.00 17.65           C
HETATM 3783  C1D HEM B 471       3.413  23.851 -12.875  1.00 19.45           C
HETATM 3784  O1A HEM B 471       2.810  16.231 -17.621  1.00 19.81           O
HETATM 3785  O1D HEM B 471       8.744  20.054 -13.132  1.00 19.49           O
HETATM 3786  C2A HEM B 471       0.897  19.181 -15.185  1.00 15.87           C
HETATM 3787  C2B HEM B 471      -3.762  22.449 -12.993  1.00 18.51           C
HETATM 3788  C2C HEM B 471       0.116  26.541 -10.688  1.00 18.38           C
HETATM 3789  C2D HEM B 471       4.769  23.528 -13.327  1.00 17.19           C
HETATM 3790  O2A HEM B 471       2.839  17.520 -19.393  1.00 18.08           O
HETATM 3791  O2D HEM B 471       7.599  19.160 -14.777  1.00 19.41           O
HETATM 3792  C3A HEM B 471      -0.473  19.243 -15.090  1.00 17.13           C
HETATM 3793  C3B HEM B 471      -3.680  23.608 -12.262  1.00 19.05           C
HETATM 3794  C3C HEM B 471       1.466  26.538 -10.935  1.00 18.71           C
HETATM 3795  C3D HEM B 471       4.689  22.315 -13.902  1.00 16.11           C
HETATM 3796  C4A HEM B 471      -0.773  20.456 -14.321  1.00 19.43           C
HETATM 3797  C4B HEM B 471      -2.244  23.906 -12.120  1.00 19.13           C
HETATM 3798  C4C HEM B 471       1.778  25.367 -11.707  1.00 19.27           C
HETATM 3799  C4D HEM B 471       3.266  21.902 -13.868  1.00 19.57           C
HETATM 3800  NC  HEM B 471       0.655  24.606 -11.941  1.00 17.74           N
HETATM 3801  FE  HEM B 471       0.539  22.816 -12.859  1.00 18.57          Fe
HETATM 3802  O1  HEM B 471       0.562  23.667 -14.260  1.00  0.00           O









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