[gmx-users] Atom was not found

[h.alizadeh at znu.ac.ir]

Dear Users,
I want to simulate a protein by GROMACS. 
When I use pdb2gmx command, topology and other files are produced from my
pdb file.
But when I define a box for my protein by editconf before pdb2gmx, I face
with this fatal error:

"Atom OXT in residue VAL 226 was not found in rtp entry VAL with 8 atoms
while sorting atoms"

of course as I said, without defining a box, pdb2gmx is ok!!

Thanks for any help,
Hadi