minnale wrote:
Hi all, I intersted in analysing secondary structure of protein by using VMD and performed these steps. 1. First loaded min.gro file and corresponding min.xtc then all equalibration .xtc files till here MD movie has run fine. 2. I had long trajectory in a single file, so cut it down into subtrajectories with 1ns interval by using *trjconv command and issued like this
  trjconv -f .xtc -o 1ns.xtc -s .tpr -b 0 -e 1000
  selected system, it showed

Fatal error:
Index[2725] 2726 is larger than the number of atoms in the trajectory file (2725)

You've only saved a subset of your trajectory. Check the xtc-grps in your .mdp file. You can use trjconv if you have a reference structure that matches the contents of your trajectory.

-Justin


Could you please give me suggestion if any one have experienced this type of problem
Thanks in advance.



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Justin A. Lemkul
Graduate Research Assistant
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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