[phenixbb] Refinement Problem

Kay Diederichs kay.diederichs at uni-konstanz.de
Wed Jan 12 23:08:09 PST 2011


> Date: Wed, 12 Jan 2011 17:12:04 -0500 (EST)
> From: Christopher W Davies<cdavies at purdue.edu>
> To: phenixbb at phenix-online.org
> Subject: [phenixbb] Refinement Problem
>
>
> I am having an issue with refining my structure.  I have a 2.36 A resolution dataset.  I have found a solution by molecular replacement in the space group P3221.  I have been refining the structure, however, my Rfactor/Rfree are not decreasing even though I have good density.  My current Rfactor/Rfree values are .40/.43.  Can anyone help me?
>
>
> Thanks.
>
> Chris

Chris,

there is a collection of things to think about at

http://strucbio.biologie.uni-konstanz.de/ccp4wiki/index.php/Refinement#R-factor_does_not_go_down

HTH,

Kay

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