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*To*: ccp4bb@dl.ac.uk*Subject*: [ccp4bb]: origin definition*From*: Bernard Santarsiero <bds@uic.edu>*Date*: Thu, 6 Feb 2003 11:37:24 -0600 (CST)*Sender*: owner-ccp4bb@dl.ac.uk

*** For details on how to be removed from this list visit the *** *** CCP4 home page http://www.ccp4.ac.uk *** I have a set of phases from an MIR run in SOLVE and a potential molecular replacment solution of about half the structure in space group P3. They have different origins in Z since it's either defined by the set of heavy atom positions in SOLVE, or the set of coords in the MR search model. I want to compare the SOLVE phased map and the MR sfall/2Fo-Fc map. I see at least two possibilities: 1. mask a map region around the model of the MR solution and move it around the phased map; the highest CC should indicate the best overlap of the two maps. I think I can use RAVE to do this. 2. calculate a series of phases and list the 00l's with phases. Each set is from a set of coords that have been translated in Z. At some point, these phases should match those from the SOLVE solution. As for point #2, I can't seem to get sfall or sigmaa to output the Hendrickson-Lattman coefficients, which would be useful. Suggestions? Bernie Santarsiero

**Follow-Ups**:**Re: [ccp4bb]: origin definition***From:*"Ralf W. Grosse-Kunstleve" <rwgk@yahoo.com>

**Re: [ccp4bb]: origin definition***From:*"David J. Schuller" <djs63@cornell.edu>

**Re: [ccp4bb]: origin definition***From:*"Eleanor J. Dodson" <ccp4@ysbl.york.ac.uk>

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