<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hi Yaikhomba,<div class="">Definitely yes, you just need to specify the residue range in the "spec" (specifier) part of the "color" command. </div><div class=""><<a href="http://rbvi.ucsf.edu/chimerax/docs/user/commands/color.html#simple" class="">http://rbvi.ucsf.edu/chimerax/docs/user/commands/color.html#simple</a>></div><div class=""><br class=""></div><div class="">As explained in that help page, to color only the molecular surface for those residues (not atomic sticks, ribbons, etc.) you would include the "target s" option. For example, these commands would show molecular surface for 2gbp and color the parts of the surface orange for residues 50-100 and 126-135 in chain A:</div><div class=""><br class=""></div><div class="">open 2gbp</div><div class="">surface</div><div class="">color /A:50-100,126-135 orange target s</div><div class=""><br class=""></div><div class="">image of result attached.</div><div class=""><br class=""></div><div class="">This page explains command-line specification (how to specify parts of the structure instead of the whole structure):</div><div class=""><<a href="http://rbvi.ucsf.edu/chimerax/docs/user/commands/atomspec.html" class="">http://rbvi.ucsf.edu/chimerax/docs/user/commands/atomspec.html</a>></div><div class=""><br class=""></div><div class="">I hope this helps,</div><div class="">Elaine<br class=""><div class="">-----<br class="">Elaine C. Meng, Ph.D. <br class="">UCSF Chimera(X) team<br class="">Department of Pharmaceutical Chemistry<br class="">University of California, San Francisco<br class=""><br class=""><br class=""><img apple-inline="yes" id="DF8913E7-019D-4EB8-8A18-EBAD0B31DB90" width="320" height="225" src="cid:5777477E-3CC4-4238-8FFF-43A01A79A82E@gateway.sonic.net" class=""></div><br class=""><blockquote type="cite" class="">On Nov 26, 2020, at 12:48 PM, Y. Mutum <<a href="mailto:ym337@cam.ac.uk" class="">ym337@cam.ac.uk</a>> wrote:<br class=""><br class="">Hi<br class=""><br class="">I have a pdb with 10 TMH (single polypeptide protein, so only 1 chain in pdb). The first TMH are colored in green and the rest in yellow.<br class="">Is there a way to create a surface that consists of both these colors? i.e. Surface corresponding to TMH's 1-5 is colored in green, while the surface corresponding to TMH's 6-10 in yellow?<br class=""><br class="">I tried the surface command option but it seems to color the entire surface in a uniform color.<br class=""><br class="">Any suggestions would be very helpful.<br class=""><br class="">Thanks<br class="">Yaikhomba<br class="">_______________________________________________<br class="">ChimeraX-users mailing list<br class=""><a href="mailto:ChimeraX-users@cgl.ucsf.edu" class="">ChimeraX-users@cgl.ucsf.edu</a><br class="">Manage subscription:<br class="">https://www.rbvi.ucsf.edu/mailman/listinfo/chimerax-users<br class=""></blockquote><br class=""></div></body></html>