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Dear Acoot,
the positions of the reflections on the detector depend on the unit
cell dimensions, but not at all on the content of the unit cell.
Therefore a protein crystal with a rather large cell produces a large
number of reflections per image. A salt crystal has a very small unit
cell and you will only observe very few spots. These, however, will be
a very high intensity.
Best,
Tim
On 12/02/2013 04:16 AM, Acoot Brett wrote:
> Dear All,
>
> Suppose I have a crystal hit from the protein-metal complex, with
> the possibility of that the hit is a salt crystal. When I diffract
> it by X-ray, I got some metal (or salt) diffraction without the
> protein diffraction (maybe due to too low protein resolution). Will
> you please tell me how to know whether my diffraction was from a
> salt crystal or from the diffraction of the metal in my
> protein-metal complex?
>
> I am looking forward to getting your reply.
>
> Cheers,
>
> Acoot
>
- --
- --
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen
GPG Key ID = A46BEE1A
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