Anushree Tripathi wrote:
I am using gromacs 4.5.3 version.When I run the command (i.e., make_ndx -f em.gro -o index.ndx),It is not showing any option for DPPC group which I want to include.Please tell me how could I merge or create this option for proceeding to the next step of NVT simulation.


Every individual molecule that is not in a default group like Protein in the system is given its own group. The fact that DPPC does not show up in your list suggests to me that you have no DPPC in your coordinate file. Sounds to me like you're using an .mdp file designed for membrane protein MD when you don't have a membrane present.

-Justin

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========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
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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