On 25/08/10 23:24, Garib Murshudov wrote:

However 1) coot uses 2mFo-DFc maps

Typically yes, but it uses whatever Refmac (or other programs) provide (of course)

2) you should be able to feed any map you want to coot

Yes.

so it is nice place for experimenting this kind
of calculation

Hopefully.

  3) You may try to relax gemetry

R/RC -> Refinement Weight.

(I often change it to 6 (from 60) if I need to tighten things up.)

4) Usually if the
model does not fit into electron density and programs do not want to
correct it then there may be some fundamental problem in this part of
the model

Agreed!




On 25/08/10 23:13, Hailiang Zhang wrote:
Actually I tried coot real space refine zone, but the model seems not
sliding into the best density map

Can you expand on that?



On 25/08/10 23:33, Pavel Afonine wrote:
Compare slides #4 and #5:
http://cci.lbl.gov/~afonine/rsr.pdf


Yes, slide 5 is what Coot uses.

Paul.

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