From: Rachel Ruskin (rsrusk_at_gmail.com)
Date: Sat Feb 13 2010 - 01:24:58 CST

Dear VMD users,

I would like to reflect my protein across the xy plane.
What I tried:
set M {{0 0 0 0} {0 0 0 0} {0 0 -1 0} {0 0 0 1}}
set sel [atomselect top "all"]
$sel move $M

When this command is applied, instead of ending up in a nicely
reflected protein all of the atoms coalesce into a single line.

Is my transformation matrix off (quite possible), or am I applying it
incorrectly (also quite possible)?

Thanks for your help,

Rachel Ruskin