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Hi George,<br>
<br>
perhaps there are several instances of atom name N in your model.
You need to be more specific, for example:<br>
<br>
chain A and resseq 123 and name N<br>
<br>
This selects atom N in residue number 123 in chain A. If there are
alternative conformation, you need to be even more specific:<br>
<br>
chain A and resseq 123 and name N and altloc B<br>
<br>
Pavel<br>
<br>
<blockquote
cite="mid:CAFU65PchrYahDRvjsYCQTa2zP82GisFB3o-EZFL_USVxvyyLgg@mail.gmail.com"
type="cite">
<div dir="ltr">Hi,�
<div><br>
</div>
<div>I was trying to restrain the N-CA-C angle to 110.0</div>
<div><br>
</div>
<div>I updated the .def file as follows:</div>
<div><br>
</div>
<div>
<div>�angle {</div>
<div>� � � action = *add�</div>
<div>� � � atom_selection_1 = name N</div>
<div>� � � atom_selection_2 = name CA</div>
<div>� � � atom_selection_3 = name C</div>
<div>� � � angle_ideal = 110.0</div>
<div>� � � sigma = 2</div>
</div>
<div><br>
</div>
<div>I got the following:</div>
<div>
<div>Sorry: More than one atom selected: "name N"</div>
<div>� Number of selected atoms: 86</div>
</div>
<div><br>
</div>
<div>I tried using N in quotes and it doesn't work either but
the example in the website had this(below), what am I doing
wrong?</div>
<div>
<pre class="" style="margin-left:2em;margin-right:2em;color:rgb(0,0,0)">resname ALA and (name ca or name c or name n or name o)</pre>
</div>
<div>Thank you</div>
<div>
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</pre>
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