<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Andrea, <div class="">If the pixel size is not defined in the header of the .mrc file if your EM map, chimera will use a default 1A/px.</div><div class=""><br class=""></div><div class="">You can set correct pixel size using volume command with voxelSize option. For instance, if the target EM map is volume #1 and pixel size 1.5A, use</div><div class="">volume #1 voxelSize 1.5</div><div class=""><br class=""></div><div class="">Best.</div><div class="">Oleksiy</div><div><br class=""><blockquote type="cite" class=""><div class="">On 21 Jul 2020, at 13:14, Andrea Dallapè <<a href="mailto:andrea.dallape@unitn.it" class="">andrea.dallape@unitn.it</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi,<div class=""><br class=""></div><div class="">I have an EM map -from a cryoET experiment- and I would like to use ChimeraX in order to fit the protein -the ribosome, in this case- in such EM map.</div><div class="">I don't understand why the PDB of the ribosome I open in ChimeraX is far bigger than the EM map I have, and I don't really know how to resize them in order to have a fittable model.</div><div class="">Could you suggest me a solution?</div><div class="">Thank you for your help and attention,</div><div class=""><br class=""></div><div class="">Andrea</div></div>
_______________________________________________<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></blockquote></div><br class=""><div class="">
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;">Dr Oleksiy Kovtun<br class="">Research Fellow<br class="">Briggs group<br class="">MRC Laboratory of Molecular Biology<br class="">Francis Crick Avenue<br class="">Cambridge<br class="">CB2 0QH<br class="">UK<br class=""><br class="">Tel: + 44 1223 267551<br class=""><a href="mailto:okovtun@mrc-lmb.cam.ac.uk" class="">Email: okovtun@mrc-lmb.cam.ac.uk</a></div>
</div>
<br class=""></body></html>