I think this is a poly-crystalline incommensurately modulated crystal, i.e.
incommensurately modulated crystal, which fractured upon freezing, resulting
in averaging of satellite spots.
Fig. 3b from here:
http://www.princeton.edu/~actin/documents/Proteincrystalscanbeincommensurate
lymodulated.pdf
Petr
On 10/29/10 6:08 PM, "David Goldstone" <[log in to unmask]>
wrote:
> Dear All,
>
> Does anyone have any insight into what the circles around the spots
> might be?
>
> cheers
>
> Dave
|