[PyMOL] give your protein a box!

Here is a nice script to draw a minimu bounding box of your target PDB.
Author: Jason Vertrees

Example of 2GB1, using stereo view:

usage:
run PATH/drawMinBoundingBox.py
drawMinBoundingBox.py 2GB1, 3, r=0.3, g=0.3, b=0.3
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drawMinBoundingBox [selection, [lineWidth, [redColor, [greenColor, [blueColor]]]]]

Download this script at pymolwiki.