- Protein crystallography
Main steps: - Protein purification - Crystallisation
Special: - Programs for crystallography - X-ray detectors
Basic tutorials: - Chemistry - Protein - Peptide - Amino Acids
Xtal community: - CCP4BB
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Subject: Re: twin fraction varies between crystals?. . From: Iain Kerr iain {- dot -} kerr {- at -} STJUDE {- dot -} ORG Date: 2007-04-17
Mark,
I had a very similar problem. Varying twin fraction in identical drops - no logical pattern. I eventually solved the structure as you seem to have, screening dozens of crystals to find an untwinned crystal or at least one with very low or statistically insignificant twin fraction (which I would say 0.02 is...?)...
Congratulations on solving your structure. I remember how frustrating this was !
cheers, Iain
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