[gmx-users] missing atoms

[swatik at ncbs.res.in]

Hi All,

I am running Gromacs for drug enzyme complex using AMBER as
forcefield.While running pdb2gmx command I am getting error and warning of
790 missing atoms. Can anybody suggest me how to correct this error.

error :
-----------------------------------------------------------
WARNING: atom H is missing in residue CYSH 703 in the pdb file
         You might need to add atom H to the hydrogen database of residue
CYSH
         in the file ff???.hdb (see the manual)


WARNING: atom HA is missing in residue CYSH 703 in the pdb file
         You might need to add atom HA to the hydrogen database of residue
CYSH
         in the file ff???.hdb (see the manual)


WARNING: atom HB1 is missing in residue CYSH 703 in the pdb file
         You might need to add atom HB1 to the hydrogen database of
residue CYSH
         in the file ff???.hdb (see the manual)


WARNING: atom HB2 is missing in residue CYSH 703 in the pdb file
         You might need to add atom HB2 to the hydrogen database of
residue CYSH
         in the file ff???.hdb (see the manual)

-------------------------------------------------------
Program pdb2gmx_mpi, VERSION 3.3.1
Source code file: pdb2top.c, line: 697

Fatal error:
There were 790 missing atoms in molecule Protein_A, if you want to use
this incomplete topology anyhow, use the option -missing
-------------------------------------------------------