Hi Andy, I am not sure I understand the question. If you mean you just want to color each molecule model a different color of the rainbow in one step, see Rainbow (under Tools... Depiction). The Model Panel (under Favorites in the menu) also has a "rainbow" button. <http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/rainbow/rainbow.htm...

<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/modelpanel.html> More generally, you would select a protein (or chain, or part of a chain) to color, then use Actions... Color to choose the color for that, then go on to the next protein or part of protein. There are many, many different ways to select things: Ctrl-click on the structure followed by pressing the up arrow key, or using the Select menu, or using the "select" operations on the right side of the Model Panel, etc. <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/selection.html> These things could also be done with commands or a command script. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Feb 19, 2009, at 2:41 PM, Anindito Sen wrote:

Dear All

Please share with me as how to put multiple color to several pdb structures docked in a density map.

Best Andy