Why not use yellow carbons (colour by atom menu) and hit the builder button in pymol which shows bond order (carbonyls). You could also type colour gray, name o, this colours the carbonyls gray (or any other colour that works) "name o* colours all oxygens
Hope this helps From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Phoebe A. Rice Sent: Friday, 31 May 2013 1:35 p.m. To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] atomic coloring for the color blind I feel badly that one of my undergrads had trouble telling an O from a C in a pymol homework set because he's color blind. (The assignment involved telling me why the a GTP analog (GDPCP) wasn't hydrolyzed). Is there a handy by-atom coloring scheme I can recommend that works for the red-green color blind? thanks, "Professor Rice" ++++++++++++++++++++++++++++++++++++++++++ Phoebe A. Rice Dept. of Biochemistry & Molecular Biology The University of Chicago 773 834 1723; pr...@uchicago.edu<mailto:pr...@uchicago.edu> http://bmb.bsd.uchicago.edu/Faculty_and_Research/ http://www.rsc.org/shop/books/2008/9780854042722.asp