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Hi there!

I have a problem regarding symmetry display with coot, too. I am refining a 
protein which crystallized in C2 and see a nice difference density which fits 
exactly an N-terminal pyroglutamate. However, when i place the model in the 
difference density and move one residue further, the pyroglutamate superposes 
exactly with that of a symmetry mate. Obviously that is not possible in a real 
crystal... or am i missing something?

greetings, david




-------- Original-Nachricht --------
Datum: Thu, 10 Aug 2006 19:26:51 +0100
Von: Paul Emsley <[EMAIL PROTECTED]>
An: Jack Tanner <[EMAIL PROTECTED]>
Betreff: Re: [ccp4bb]: Coot and drawing symmetry molecules in C2

> ***  For details on how to be removed from this list visit the  ***
> ***          CCP4 home page http://www.ccp4.ac.uk         ***
> 
> 
> 
> Jack, 
> 
> > The question is whether there is a problem drawing symmetry molecules in
> > coot in space group C2.  
> >
> > Based on these data, I'd like to ask whether anyone has had problems
> drawing
> > symmetry molecules in C2 in coot?
> 
> Yes!  Me for a start, it was certainly a bug (sloppy thinking).
> 
> This problem has been addressed once or twice on the coot mailing
> list before now.
> 
> Are you using a recent version of Coot? 0.1.1?
> There are certainly problems with symmetry in 0.0.33.
> 
> Now let me draw your attention to section 4.11.1 of the 
> Coot User Manual.
> 
> http://www.ysbl.york.ac.uk/~emsley/coot/doc/user-manual.html#SEC73
> 
> HTH, 
> 
> Paul.

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