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Hi Reza,<br>
<br>
you can have as many as you can fit into memory of your computer.<br>
<br>
Note, you need to provide the whole molecule as the input (not one
copy plus MTRIX/BIOMT matrices). If you only have one copy plus
MTRIX/BIOMT matrices you can use phenix.pdb.mtrix_reconstruction or
phenix.pdb.biomt_reconstruction tools to obtain the whole model (the
GUI equivalents of these command line tools are available, I think).<br>
<br>
Running real-space refinement (phenix.real_space_refine) would be
less memory intensive than reciprocal space refinement
(phenix.refine). You did not mention what data you have, X-ray or
Cryo-EM, so I would not tell much about this.<br>
<br>
Anyway, you should be able to do what you want without problems. If
you have any questions or problems or need any help please let me
know!<br>
<br>
Good luck!<br>
Pavel<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/1/15 17:10, Reza Khayat wrote:<br>
</div>
<blockquote cite="mid:1443744655581.53744@ccny.cuny.edu" type="cite">
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<p>Hi,</p>
<p><br>
</p>
<p>I need to use icosahedral symmetry to refine a virus crystal
structure. Does phenix support 60 NCS matrices? If not, how
should I go about recompiling the program so that I can have 60
NCS matrices?
</p>
<p><br>
</p>
<p>Best wishes,<br>
Reza<br>
</p>
<p><br>
</p>
<div id="Signature">
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Reza Khayat, PhD
<div>Assistant Professor�</div>
<div>City College of New York</div>
<div>Department of Chemistry</div>
<div>New York, NY 10031</div>
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<br>
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<br>
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