Hi Brandon,

What you want is not possible. But, if you make a pdb file containing the atoms involved in flexible bonding and a pdb with the atoms involved in rigid bonding, you can get the image you want.

load Protein, protein.pdb
load Flex, flexible.pdb
load Rigid, rigid.pdb

hide everything
show sticks, Flex
show sticks, Rigid
show spheres, Protein
set sphere_scale, 0.3
set stick_radius, 0.15

color red, Flex
color blue, Rigid

That should basically get you close to what you want.

Hope ti helps,

Tsjerk

On Wed, 25 May 2005 17:21:23 -0700
 Brandon Hespenheide <brandon.hespenhe...@asu.edu> wrote:
Hi,
In general, coloring of a molecule is mapped onto the atoms. For example carbon = green, hydrogen = gray. The bond between the carbon and the hydrogen would then be two-tone; half of the bond nearest the carbon would be green, the other half of the bond nearest the hydrogen would be gray. Is it possible to color the bonds in a molecule independent of the atoms they are incident with? We have some software that computes which bonds in a molecular structure can rotate (flexible) and which can not rotate (rigid). I'd like to be able to distinguish these bonds (flexible versus rigid) with different colors. The problem is that atoms can be incident with both flexible bonds and rigid bonds, so we can't simply color an atom appropriately. Something like "atom_1 atom_2 color" would be nice.
Any thoughts?

Brandon Hespenheide


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