Hi Francesco, In the command line, ":" means residue number and the following "." indicates the chain ID. You could select the residues with select :0-521.water if they are in the "water" chain, or use that same specification in many other commands, for example color hot pink :0-521.water Probably the most tricky thing is that :0-521 without specified chain ID would include residues in any chains with single-character IDs (A,B,C ...) but not the special chains "water" and "het" Details on command-line atom specifications: http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/frameatom_spec.htm ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Nov 30, 2007, at 9:51 AM, Francesco Pietra wrote:
Sorry for a question that was surely answered many times.
How to detect on the screen (from command line) residues from their resSeq number?. I have two different sets of WAT: 522-9999 and 0-4759 and want to check where 0-521 are located in a protein-ligand-POPC membrane.
Thanks francesco pietra