[3dem] Any scripts to determine the rotation symmetry

Marin van Heel m.vanheel at imperial.ac.uk
Fri Oct 12 23:21:57 PDT 2012

Dear Aguang Dai,

The estabished way to analyse the symmetry properties of a data set is 
through eigenvector analysis  (see: P Dube, P Tavares, R Lurz, and M van 
Heel, Bacteriophage SPP1 portal protein: a DNA pump with 13-fold 
symmetry, EMBO J. 12 (1993) 1303-1309.) Further details in the Symmetry 
and MSA  manuals/papers on: 

Hope this helps,

Marin van Heel


On 12-Oct-12 8:28 PM, Dai, Aguang wrote:
> Hello everyone,
> I'm working on some macromolecules with symmetry.
> Unfortunately, it shows combination of different symmetry.
> I want to know the intrinsic symmetry inside.
> I'm wondering anyone has or knows any script to determine the rotation 
> symmetry in 3D volume.
> Thanks a lot.
> Best wishes,
> Aguang Dai
> _______________________________________________
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> 3dem at ncmir.ucsd.edu
> https://mail.ncmir.ucsd.edu/mailman/listinfo/3dem


     Marin van Heel

     Professor of Cryo-EM Data Processing

     Leiden University
     Cell Observatory
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     2333 CC Leiden
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     Tel. NL:     + 31 (0) 715271424
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     Skype:       Marin.van.Heel


     Professor of Structural Biology

     Imperial College London
     Faculty of Natural Sciences
     Division of Molecular Biosciences
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     London SW7 2AZ,  UK
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     email:  marin.vanheel(A_T)gmail.com
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