Hi, Bernhard,

To clarify my previous e-mail, in both cases the maps are being calculated from weighted coefficients from an MTZ file output by the program. I tried calculating a weighted 2Fo-Fc map in CCP4i using the PHENIX MTZ file and the end-result (red bars) was the same.

Pedro.

At 09:23 17-01-2013, Bernhard Lohkamp wrote:
Hi Pedro,

this is due to the map sampling (which seems different between the two programs). Anyway, for now you can change the weighting manually:

Extensions->Refinement->Set Density Fit Graph Weight

B

On 17/01/2013 10:11, Pedro M. Matias wrote:
Hi,

I encountered a strange problem while running the "Density Fit Analysis"
widget on a structure refined with PHENIX. All residues are represented
with a red bar (see picture) with low CC.

Using the same input coordinate and MTZ file in REFMAC produces normal
"Density Fit Analysis" graphs (see picture).

I am at a loss to understand why this is happening...

This happens with both 0.6.2 and 0.7 versions of Coot.

Best regards,

Pedro.


Industry and Medicine Applied Crystallography
Macromolecular Crystallography Unit
___________________________________
Phones : (351-21) 446-9100 Ext. 1669
               (351-21) 446-9669 (direct)
     Fax   : (351-21) 441-1277 or 443-3644

email : mat...@itqb.unl.pt

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--
***************************************************

Dr. Bernhard Lohkamp
Assistant Professor
Div. Molecular Structural Biology
Dept. of Medical Biochemistry and Biophysics (MBB)
Karolinska Institutet
S-17177 Stockholm
Sweden

phone: (+46) 08-52487651
fax:   (+46) 08-327626
email: bernhard.lohk...@ki.se

Industry and Medicine Applied Crystallography
Macromolecular Crystallography Unit
___________________________________
Phones : (351-21) 446-9100 Ext. 1669
              (351-21) 446-9669 (direct)
    Fax   : (351-21) 441-1277 or 443-3644

email : mat...@itqb.unl.pt

http://www.itqb.unl.pt/research/biological-chemistry/industry-and-medicine-applied-crystallography
http://www.itqb.unl.pt/labs/macromolecular-crystallography-unit

Mailing address :
Instituto de Tecnologia Quimica e Biologica
Apartado 127
2781-901 OEIRAS
Portugal

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