Re: [ccp4bb] Best program to find whether a crystal is twinned ?

2007-09-06 Thread Eleanor Dodson

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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Re: [ccp4bb] Best program to find whether a crystal is twinned ?

2007-08-31 Thread William Scott
Try

phenix.xtriage


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





 Disclaimer
 This communication is confidential and may contain privileged information
 intended solely for the named addressee(s). It may not be used or
 disclosed except for the purpose for which it has been sent. If you are
 not the intended recipient you must not review, use, disclose, copy,
 distribute or take any action in reliance upon it. If you have received
 this communication in error, please notify Astex Therapeutics Ltd by
 emailing [EMAIL PROTECTED] and destroy all copies of the
 message and any attached documents.
 Astex Therapeutics Ltd monitors, controls and protects all its messaging
 traffic in compliance with its corporate email policy. The Company accepts
 no liability or responsibility for any onward transmission or use of
 emails and attachments having left the Astex Therapeutics domain.  Unless
 expressly stated, opinions in this message are those of the individual
 sender and not of Astex Therapeutics Ltd. The recipient should check this
 email and any attachments for the presence of computer viruses. Astex
 Therapeutics Ltd accepts no liability for damage caused by any virus
 transmitted by this email. E-mail is susceptible to data corruption,
 interception, unauthorized amendment, and tampering, Astex Therapeutics
 Ltd only send and receive e-mails on the basis that the Company is not
 liable for any such alteration or any consequences thereof.
 Astex Therapeutics Ltd., Registered in England at 436 Cambridge Science
 Park, Cambridge CB4 0QA under number 3751674