On 9/8/12 4:46 PM, Elie M wrote:
Thanks a lot for your response. Actually i do have LIG , which obviosuly the
code did not understand and changed it into LI; at first I thought LI was LIG
but in GROMACS' language. Is there any place where I can read how to
implement changes in the .rtp file? or any other way to get the correct pdb
format. i used openbabel because Markin SKETCH and ArgusLAB do not seem to
keep the charged Nitrogen and Chlorine ions I have got in my structure. By
the way, I have attached the pdb input file (I guess)..
The list does not accept attachments. If Gromacs is interpreting "LIG" as "LI"
then the .pdb file is formatted incorrectly - at least one column is shifted,
which will lead to misinterpretation of all of the contents. If you want to add
a new residue in the .rtp file, refer to the manual, section 5.6.1, in
conjunction with implementation details at:
http://www.gromacs.org/Documentation/How-tos/Adding_a_Residue_to_a_Force_Field
-Justin
--
========================================
Justin A. Lemkul, Ph.D.
Research Scientist
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
========================================
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