[phenixbb] Refining with NCS

Francis E Reyes Francis.Reyes at Colorado.EDU
Mon Aug 25 10:38:10 PDT 2008


I have 4 molecules in my ASU and I had phenix pick out my NCS  
operators automatically. Do a round of refinement, load 2fofc maps  
into coot and ask to calculate NCS Maps (Calculate -> NCS Maps). I  
have three new maps mapping a single chain onto the other chains (3)  
and an NCS average map. I look at some of the NCS maps and the  
question is should the model (all the chains) match to every NCS map?  
In my set of 3 maps, the model fits one map (independent of chain) but  
seems offset in the other two maps.

Also if anyone has a paper/protocol for NCS refinement, I'd love to  
check it out (to figure out which map to fit to).



Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

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