Within CCP4
SFCHECK and TRUNCATE provide an analysis
the PHENIX Xtriage is excellent..
See http://www.ccp4.ac.uk/dist/html/twinning.html
Eleanor
Jobichen Chacko wrote:
Dear All,
Can you please inform me the programs available to find whether a crystal is
twinned and also the data reduction programs for twinned crystals.
Thanks in advance.
Jobi
________________________________
From: CCP4 bulletin board on behalf of Ian Tickle
Sent: Sat 9/1/2007 1:46 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] How many twinned crystals?
In the past twinned crystals must have been much more frequent than
published twinned structures because the traditional reaction of
crystallographers to twinning has been either to find a way of
inhibiting it or chucking the crystals in the bin and finding a
non-twinned form. But I guess that's changing now with better software
and we're becoming more adventurous - maybe that's why we're hearing
about more twinned crystals now.
-- Ian
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jacob Keller
Sent: 31 August 2007 18:32
To: CCP4BB@JISCMAIL.AC.UK
Subject: How many twinned crystals?
Since I joined this list, I have seen many many issues with
twinned structures, but have never seen
any personally. Granted, problems with twinning induce people
to write to the list, making them
seem more prominent, but does anyone have an idea what
percent of crystals are twinned, or know of
a ref about this? I always thought it was an anomaly, but....
All the best,
Jacob Keller
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