<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello,<div class=""><br class=""></div><div class="">As Elaine said, you cannot "convert" between the two formats because they represent different things (a volume, atomic coordinates).</div><div class=""><br class=""></div><div class="">But you can generate a volume from atomic coordinates with the molmap command (think of it as producing a synthetic density map of the molecule): <a href="https://www.cgl.ucsf.edu/chimerax/docs/user/commands/molmap.html" class="">https://www.cgl.ucsf.edu/chimerax/docs/user/commands/molmap.html</a></div><div class=""><br class=""></div><div class="">The inverse task of building an atomic model from a volume and a sequence, in an automated way, is still an open problem. But research on this problem is making fast progress these days, see for instance <a href="https://github.com/3dem/model-angelo" class="">https://github.com/3dem/model-angelo</a></div><div class=""><br class=""></div><div class=""><div class="">Cheers,</div><div class="">
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<div><br class=""><blockquote type="cite" class=""><div class="">On 5 Oct 2022, at 17:37, Elaine Meng via ChimeraX-users <<a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi Tianming,<br class="">No -- they are different kinds of data. MRC is a density-map format, PDB is an atomic structure format.<br class="">Best,<br class="">Elaine<br 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=""><blockquote type="cite" class="">On Oct 5, 2022, at 6:54 AM, Tianming Qu via ChimeraX-users <<a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a>> wrote:<br class=""><br class="">Hi, is there any way I can convert a .mrc file to .pdb file in chimera?<br class=""><br class="">Best,<br class="">Tianming <br class=""></blockquote><br class=""><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=""></div></div></blockquote></div><br class=""></div></body></html>