I also would love to see an imageā€¦.


Jacob Pearson Keller
Research Scientist / Looger Lab
HHMI Janelia Research Campus
19700 Helix Dr, Ashburn, VA 20147
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Cell: (301)592-7004

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From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of James 
Sent: Tuesday, February 13, 2018 3:03 PM
Subject: Re: [ccp4bb] protein quasicrystals?

There are programs which are good at indexing patterns from multiply twinned 
crystals. Bruker AXS has one, to my knowledge. There may be other sources. I 
suggest you try that first before you invoke a quasicrystal explanation.

James Phillips

On Tue, Feb 13, 2018 at 12:07 PM, Takanori Nakane 
<tnak...@mrc-lmb.cam.ac.uk<mailto:tnak...@mrc-lmb.cam.ac.uk>> wrote:

"dials.reciprocal_space_viewer" is very useful to identify multiple lattices.
For quasicrystal and modulated crystals, "dials.rs_mapper" is also very

Best regards,

Takanori Nakane

> Have you tried microseeding of these sphere crystals? It may help to get
> better crystals.
> Burak
> ________________________________
> From: CCP4 bulletin board 
> <CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK>> on behalf of Yu Qiu
> <yu....@sanofi.com<mailto:yu....@sanofi.com>>
> Sent: 13 February 2018 15:09:43
> Subject: [ccp4bb] protein quasicrystals?
> Hi,
> I have been trying to crystallize a protein complex and keep getting
> sphere shape crystals. The diffraction is around 3 angstrom, but looks
> like multiple lattices. I am wondering if it could be a quasi crystal? Is
> there anyone has such experience?
> Thanks,
> Yu

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