Re: [ccp4bb] R and Rfree

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Subject: Re: How do CNS deal with the His NE2 atoms coordinated with Zn2+?
From: David Briggs bassophile {- at -} GMAIL {- dot -} COM
Date: 2007-04-26

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Subject: Re: R and Rfree
From: Ian Tickle I {- dot -} Tickle {- at -} ASTEX-THERAPEUTICS {- dot -} COM
Date: 2007-04-26

Subject: Re: R and Rfree
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2007-04-26

It is difficult at the end of refinement - the small corrections hardly
affect the R values, but should make the maps look cleaner.
And R values are very correlated with the tightness of your geometric
restraints - maybe you are changing these slightly too?

I presume you are describing small shifts - if R values increase by 1%
there probably is something wrong.
Eleanor

U Sam wrote:
> Hi Everybody,
> I have small query.
> I am feeding ions and correcting few residues into my final structure.
> If R increases and Rfree decreases or vice versa in the subsequent refinement, which one I should accept and go forward.
> Thanks.
> Sam
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CCP4bb navigation

CCP4bb <-- 2007 <-- April 2007 <-- 26 April 2007

Previous message:
Subject: Re: How do CNS deal with the His NE2 atoms coordinated with Zn2+?
From: David Briggs bassophile {- at -} GMAIL {- dot -} COM
Date: 2007-04-26

Next message:
Subject: Re: R and Rfree
From: Ian Tickle I {- dot -} Tickle {- at -} ASTEX-THERAPEUTICS {- dot -} COM
Date: 2007-04-26