Re: [ccp4bb] MAMA-mask

- Protein crystallography

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CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Re: CNS to PDB format conversion
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-02

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Subject: Re: CNS to PDB format conversion
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-02

Subject: Re: MAMA-mask
From: Kevin Cowtan cowtan {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-02

You need to run mapmask to extend the mask to cover an assymetric unit
using the overlap option. CCP4i instruction here:
http://ccp4wiki.org/~ccp4wiki/wiki/index.php?title=Electron_density_manipulation#Converting_a_non-crystallographic_mask_to_a_crystallographic_mask

This is becoming a very FAQ. I guess I need to do some magic in Coot to
at least warn people when their map is going to give problems.

Kevin

Xiaowei Pan wrote:
>
>
> Hello all
>
> I've made a mask by MAMA from a PDB file. I also used command "Atom_fit"
> to check that all of the atoms were covered by the mask.
> But after converting the mask to ccp4 format and opening in COOT, the
> mask was too small, only covered half of the model. The mask was cut
> along two axis.
> I cannot find out the reason.
>
> Thanks for your help!
>
> Xiaowei
>
>
>
>
> 2009-09-02
> Xiaowei Pan

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Re: CNS to PDB format conversion
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-02

Next message:
Subject: Re: CNS to PDB format conversion
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2009-09-02