[phenixbb] feature enhanced maps

Guenter Fritz guenter.fritz at uni-konstanz.de
Wed Jul 24 10:25:33 PDT 2013

Dear Pavel,
I had a try today for feature enhaced maps on 3.7 and4 A resolution 
The maps look great and I feel especially at low resolution this new 
tool  helps a lot to interpret the maps.
I would be very much interested to test the fem for e-densities 
calculated from experimental phases. Is it possible in the future to use 
heavy atom derived phase information instead of a model to calculate FEMs?
Best wishes,
> Hi Joseph,
>>> Thanks Nat! I am trying out the new "Featured Enhanced Map" option.
>>> Preliminary analysis says it really helps!
>> Okay, that definitely isn't included in the GUI yet - I was waiting to
>> hear from Pavel before I added it.
>> I am sure Pavel would be interested in seeing any cases where this
>> helps.  In general, although we obviously test new methods against
>> existing datasets, it is always more impressive to demonstrate that
>> they help solve new problems.
> I'm glad it worked for you, and I'm very interested to hear any 
> feedback or answer questions. This is still considered under 
> development, though current implementation is stable and ready to use. 
> There might be some changes to the algorithm in future (mostly to make 
> it faster, so it can be routinely run after refinement, for example), 
> but I don't think these changes will be major.
> The only documentation at present is this set of slides:
> http://www.phenix-online.org/presentations/fem.pdf
> which also provides usage instructions (using command line).
> Nat: yes, it would great to have GUI for this! Thanks!
> Pavel
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PD Dr. Günter Fritz
Fachbereich Biologie
Universität Konstanz

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