[Chimera-users] Help with symmetry of fusion protein

[Elaine Meng]

Hi HK,
It is unclear what exactly you had in your modeling session, or what you mean by "unable to" (error message? empty file?  saved but in wrong position??)  I don't see any reason why you couldn't save the structures if they were open and shown in your session.  Since sym may have generated multiple models, all I can say is to make sure you chose all of them in the Save PDB dialog (or specify all of them in the saving command) and save transformed coordinates, or coordinates relative to a consistent reference.

It should be possible to save a Chimera session file as well.

I hope this helps,
Elaine
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Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Apr 14, 2020, at 5:29 AM, Hasan khan <hmk7865 at gmail.com> wrote:
> 
> Hi there I was hoping I could get some help with a modelling challenge that I am having as I am very new to protein modelling as a whole and Chimera.
> 
> So I developed a fusion protein of a single monomer of an encapsulin structure (PDB:3DKT), I wanted to build the final icosahedral structure with the added fusion protein. So I tried to align 10 of the fusion monomers to the di-pentamer of the original PDB file and ran the sym command generating the native structure with the added fusion protein. 
> I am unable to save this symmetry structure and I'm not sure if its due to the alignment of the 10 monomers onto the di-pentamer that I did first and then ran the sym command using coordinates of the original PDB or if Chimera is not able to produce coordinates for the structure in a new PDB. When I export it as a PDB the coordinates are not saved. So I was wondering if there is a way I could save this newly generated structure as other methods are not currently working. 
> 
> Thank you 
> Kind regards 
> HK
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