[phenixbb] Anomalous difference map calcluation

Jendrek alnyds at gmail.com
Tue Jul 15 06:03:58 PDT 2008

Dear All,

  I'm looking at my anomalous difference map from phenix.refine and it seems 
more or less random distributions of electron density peaks.
I know that the signal is there since I solved it with SAD. I'm using I(+/-) for 
refinement and everything seems to work fine except the map generation.

The only thing that worries me is that during the creation of _data file for 
refinement DANO column was not preserved.

  Is it necessary for phenix.refine in order to generate the anomalous 
difference map?
How can I make sure that the DANO column is preserved (if necessary)?

And by the way why is anomalous map file not generated just coefficients in the mtz?

Regards, Andrzej

	Andrzej LYSKOWSKI, Ph.D. (andrzej[.]lyskowski[@]helsinki[.]fi)
	Institute of Biotechnology - Structural Biology & Biophysics
	P. O. Box 65, Viikinkaari 1
	FIN-00014 University of HELSINKI, FINLAND
	TEL.: 358 9 191 58955
	FAX : 358 9 191 59940

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