[sharp-discuss] Density modify with NCS

[Clemens Vonrhein]

Dear Ye,

yes - there is some (rudimentary) code for NCS averaging using SOLOMON
inside Sushi. However, NCS-averaging in SOLOMON is less than
straightforward - and that's the reason I hardly ever use it myself
(you need to define your masks yourself _and_ you can't refine your
NCS operators). Therefore, I recommend using DM (either through the
CCP4i or from a good ol' script) - see the DM documentation. If you
need information about what columns from the eden_flat_XX.Xpc.mtz file
to use, please let me know.

If you expect 'proper' NCS (i.e. a closed n-fold = C_n symmetry): it
is worthwile trying the NCS-detection option from the interface. This
will run GETAX and then DM, producing NCS-averaged maps. There are a
few ugly bits in the output log-file ... but I'm sure you'll find your
way around.

Hope that helps.

Cheers

Clemens


On Tue, Feb 07, 2006 at 06:02:04PM -0500, Ye Xiang wrote:
> 
> Dear all:
> 
> How can I incorporate ncs information when I do density modification with sharp?
> I see that there is an option "denmoncs" in solo2.cgi and also there is a file
> .solomonncs under the logfile directory. It seems that this file is used for
> storing ncs information using for dm. But What is the format for this file? Thanks!
> 
> Ye
> 
> _______________________________________________
> sharp-discuss mailing list
> sharp-discuss at globalphasing.com
> http://www.globalphasing.com/mailman/listinfo/sharp-discuss
> 

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