From: Ashar Malik (
Date: Mon Feb 05 2018 - 10:14:19 CST

Try the following.

Load your pdb only.
apply the necessary transformation to it and save it with a different name.

I think what you might be missing is that moving a segment will just move
it but not double it.

Now you have two pdb files and 1 psf representing both.

A non programming way from here would be to use the merge structure plugin.
( )

An alternate way amongst others would be to write a small script where you
would have a predetermined translation added/subtracted to the relevant
coordinates. But I think this is more work than it's worth.

The plugin above should allow you to merge your structures in a non-command
line way.

This solution is not tested and written while I am away from my computer.
If it doesn't work write back and I can provide a better one.

Hope this helps.

On Feb 6, 2018 03:53, "thiagorrg UFC" <> wrote:

Hello, VMD users

I looked everywhere for this information but couldn't find it. I built a
90x90 membrane patch using, and I want to replicate this
patch to form a larger membrane 180x180.

 I tried to use moveby on the original patch, saved it, but couldn't
combine the different patches (because of same psf I think).

What am I missing here? Does anyone have a suggestion?

Thank you!