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[ccp4bb] twinned? |
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- Protein crystallographyMain steps:- Protein purification- Crystallisation Special:- Programs for crystallography- X-ray detectors Basic tutorials:- Chemistry- Protein - Peptide - Amino Acids Xtal community:- CCP4BB |
CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999Subject: twinned? From: Qiang Chen chen {- at -} RED {- dot -} DFCI {- dot -} HARVARD {- dot -} EDU Date: 2008-04-02 Hi all, The data I am working on has a strong translation vector. The space group is C2221 and resolution is 2.3 angstrom. There are two molecules per AU with a pseudo-2-fold axis. On the cumulative intensity distribution plot, the theor and obser curves totally do not overlap. I did "detect_twinning" from CNS, and there is the result: < I ^2>/(< I >)^2 = 3.2236 (2.0 for untwinned, 1.5 for twinned) (< F >)^2/< F ^2> = 0.6937 (0.785 for untwinned, 0.865 for twinned) Does the result mean my data is not twinned? Any suggestion will be highly appreciated. Thank you! The information transmitted in this electronic communication is intended only for the person or entity to whom it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this information in error, please contact the Compliance HelpLine at 800-856-1983 and properly dispose of this information. CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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