Dear Chimera users and developers,<br><br>I&#39;d like to use chimera to view the motions of a protein. If all the snapshots are to be saved in a single PDB file, what&#39;s the correct format for them? <br><br>I tried&nbsp; the following, but chimera complained that a single structure is included only.
<br><br>Thanks,<br>Mingfeng<br>------------------<br>MODEL 1<br>ATOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp; N&nbsp;&nbsp; ALA&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -4.564&nbsp; -7.956&nbsp; -6.531&nbsp; 1.00&nbsp; 0.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; N<br>ATOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2&nbsp; CA&nbsp; ALA&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -5.237&nbsp; -8.746&nbsp; -5.532&nbsp; 1.00&nbsp; 0.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C
<br>ATOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3&nbsp; C&nbsp;&nbsp; ALA&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -4.360&nbsp; -9.172&nbsp; -4.378&nbsp; 1.00&nbsp; 0.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C<br>...<br>ATOM&nbsp;&nbsp;&nbsp;&nbsp; 81&nbsp; HN&nbsp; ALA&nbsp;&nbsp;&nbsp; 10&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.195&nbsp; 11.398&nbsp;&nbsp; 3.736&nbsp; 1.00&nbsp; 0.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; H<br>END<br>MODEL 2<br>ATOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp; N&nbsp;&nbsp; ALA&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
5.031&nbsp; -8.234&nbsp; -5.174&nbsp; 1.00&nbsp; 0.00&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; N<br>....<br> END<br>