Hi,

I have tried MD of homology modelled protein by  Gromos43a1 force field. 

After selecting the force field i got the error:- 

Atom HD1 in residue HIS 163 was not found in rtp entry HSE with 17 atoms

while sorting atoms.

Then i tried to  igonre the hydrogens by -ignh command.

Further i got this error:- 

Atom OXT in residue SER 233 was not found in rtp entry SER with 11 atoms

while sorting atoms.

This is my SER233 entry in my model:- 

ATOM   1131  N   SER   233      30.369 -68.933  12.323  1.00 36.22           N  

ATOM   1132  CA  SER   233      31.614 -68.192  12.533  1.00 35.60           C  

ATOM   1133  C   SER   233      32.001 -68.099  14.016  1.00 35.61           C  

ATOM   1134  O   SER   233      31.231 -68.478  14.919  1.00 35.04           O  

ATOM   1135  CB  SER   233      31.532 -66.798  11.929  1.00 36.14           C  

ATOM   1136  OG  SER   233      31.371 -66.891  10.516  1.00  0.00           O  

ATOM   1137  OXT SER   233      33.104 -67.625  14.279  1.00 99.99           O1-

ATOM   1138  H   SER   233      29.530 -68.389  12.380  1.00 99.99           H  

ATOM   1139  HG  SER   233      31.326 -65.971  10.130  1.00 99.99           H  

I have 9 atoms in SER and one more thing is O1-   

What i should in this condition?? 

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