[gmx-users] Visualizing of a peptide in a water box - using trjconv

[Birgit Hischenhuber]

Hi,

 

I simulate a peptide in a water box with some ions to get a neutral
solution. I want to visualize the peptide in the water box.

I want that the peptide is in the center of the box, but also have a look at
the water.

 

Therefore I tried two things:

 

trjconv -f a.trr -o b.xtc -s c.tpr -skip 10 -pbc mol -ur compact -center
-fit progressive

 

Visualizing it with VMD I see the peptide centering in the middle of the
box, but the water get during the time holes.

 

So I checked the mailing list and find some inputs and tried it with two
steps:

 

trjconv -f a.trr -o b.xtc -s c.tpr -pbc mol -ur compact

trjconv -f b.xtc -o d.xtc -s c.tpr -skip 10 -center -fit progressive

 

at this try I get a peptide in the center of the box and during the time the
pepide moves to the edge of the box and I consider that the box rotate
around the peptide.

 

Is there a possibility that my peptide stays in the center of the box and
the water doesn't get any holes?

 

Thanks a lot for your helps!

 

---

 

DI Birgit Hischenhuber

Unit for Medical Statistics and Informatics 

Section for Biomedical Computersimulation and Bioinformatics

 

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