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Hi Ram,<br>
<br>
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<td style="font: inherit;" valign="top">How many cycles are
required to remove the Rfree bias for different R-free
data set. I usually do annealing at CNS. <br>
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<br>
- slightly shake coordinates and ADPs;<br>
- remove water (if present);<br>
- run phenix.refine with or without SA, refine coordinates,
B-factors, use automated water update option, as many macro-cycles
as necessary to achieve convergence (for example, R-factors stop
changing).<br>
<br>
Alternatively, you may consider running your model through
phenix.autobuild (which will be more thorough but time consuming
option).<br>
<br>
The above strategy may (significantly) vary depending on the data
resolution.<br>
<br>
Pavel.<br>
<br>
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