Hi Binh,

There may well be a way to do this with ChimeraX, but you can also easily use servalcat for this:

https://servalcat.readthedocs.io/en/latest/spa_examples/ab42.html#generate-symmetry-copies

Cheers
Oli
On Jul 11, 2024, at 12:02 PM, Binh Nguyen via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Dear all,

Is there a way in chimeraX that I can use to generate a long fibril, say 20 chains, from a single chain with a twist angle of -1.4 degree and the rise (distance between layers) of 4.75 Angstrom. Some thing like this: 
<image.png>

I normally used Coot and manually add a single layer into density. 

Thanks,

B








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