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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi All,<br>
<br>
I am currently trying to filter a CCP4-formatted real space map from the EMDB, which is at 3.2 Å resolution, to different resolutions from 3.2 to 5 Å, and I've been having a bit of a difficult time getting it to work.<br>
<br>
My first thought was to do an fft to get structure factors, then regenerate the map from those structure factors with a resolution cutoff. To do this, I used the tools "phenix.map_to_structure_factors" and "phenix.mtz2map" to generate a structure factor file,
then convert it back into a map. When I do this, I end up with a very noisy map that is not usable for what I would like to do.<br>
<br>
Is there a better way to accomplish this in phenix (or another tool)? I've also tried some low-pass filtering with proc3d, without much success...<br>
<br>
Thanks,<br>
Ben Barad<br>
Fraser Lab @ UCSF<br>
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