Dear Kavya,
Concanavalin A with glucoside involved 120 mg/ml protein.
Details of the crystallisation are here:-
 https://doi.org/10.1016/0022-2836(87)90198-7 
PDB code 1GIC.
Best wishes,
John 
Emeritus Professor John R Helliwell DSc




> On 5 Feb 2024, at 10:27, kavyashreem <kavyashr...@instem.res.in> wrote:
> 
> 
> Dear All, 
> 
> Has anyone worked on a protein which is highly soluble even at 80mg/ml?
> 
> We have one such candidate, which does not precipitate even at 80mg/ml 
> instead forms phase separated globules in crystallization plate, which 
> eventually hardens over a period of 1 to 1.5 months (which is florescent 
> under UV microscope.)
> 
> We tried screening at different pH, but failed to get any hits.
> 
> Since we got few conditions in which the phase separated globules solidified, 
> we focused on them and expanded with 120mg/ml protein, still there were not 
> visible precipitates except for the phase separation. This has been a 
> challenging target so far. We have tried with different constructs, which 
> unfortunately are not soluble!
> 
> Does POMs help in such cases? Or do you have any other suggestion. 
> 
> Thank you 
> 
> Regards
> 
> Kavya
> 
> 
> 
> 
> 
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