Re: [PyMOL] how to delete frames from a trajectory loaded by the "load_traj" command?

Hi Yeping Sun,

A non-pymol solution to this would be to extract your first frame (in the
form of .gro) from the .xtc file, and then load your .xtc trajectory
starting from the 2nd frame.

To get the first frame as a new .gro, a similar command to this can be used:
gmx trjconv -f .xtc -s .tpr -e 1 -o myNewFirstFrame.gro


Hope this helps,
Mat

On Wed, 31 Jul 2019 at 04:58, sunyeping via PyMOL-users <
pym...@li...> wrote:

> Dear all,
>
> I loaded a gromacs trajetory containing about 1000 frames by the following
> command in pymol:
>
> load protein.gro
> load_traj protein.xtc
>
> I want to use these frames to make a movie. However, I find that the
> position of the protein in first frame is very different from the other
> frames some I want to delete the first frame so the protein stays in the
> same position in all frame. Could you tell me the command of removing the
> first frame?
>
> Thank you.
>
> Best regards.
> Yeping Sun
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