Hi,<br><br>I am new to Chimera.  I have a PDB of a protein comprising of a loop region that appears to have slight alpha-helical behavior when visualized in Pymol.  However, I doubt that this region is actually structured, and that this alpha-helical behavior is actually an artifact from experimental conditions.<br>

<br>To double-check the validity of this loop, I was broadly advised that &quot;crystal structure reconstruction&quot; can be performed in Chimera.  I suspect this is either the &#39;molmap&#39; or &quot;Fit in Map&quot; feature?<br>

<br>Sincerely,<br><br>Lili<br>