Dear Esra,
Building on Kay’s input, this paper goes part way to help your further investigation/understanding:-
It also provides various other insulin crystallography references to help you along with it.
Best wishes,
John 

Emeritus Professor John R Helliwell DSc




On 8 Oct 2024, at 19:41, Esra A <[email protected]> wrote:


Dear Phenix community,

I performed a temperature shift data collection for di-hexamer insulin.
I collected single crystal data at 100K, 200K, and 300K, respectively
After processing the data, I noticed that the unit cell of the 100K dataset is distinct from 200K and 300K.
100K dataset = 78.2182 78.2182 79.3565 90 90 120 (assume that this is di-hexamer)
200K dataset = 78.3157 78.3157 39.6367 90 90 120 (it is hexamer)
300K dataset = 80.7109 80.7109 39.6399 90 90 120 (it is hexamer)
Even if I completed the structure determination of 200K and 300K successfully, I couldn't complete the molecular replacement of the 100K dataset due to the "The composition entered will not fit in the unit cell volume" error message.
I tried every "copies" and "mass" parameter in automr script. However, i got the error message every run. 
I can share with you the mtz and reference pdb file, if needed.
Could you help me, please? Where am I making a mistake?

Thank you very much.

Sincerely,

Esra Ayan
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