Hi John,

I completely agree with Paul. Just to add that this difference could also be large if you are refining against neutron data.

Pavel.

On 9/22/2008 9:12 PM, Paul Adams wrote:

Hi John,

   my understanding is that SFCHECK does not reproduce the TLS or bulk  
solvent scaling. Depending on your structure this can be a huge effect  
on the R-factors.

   Cheers,
	Paul

On Sep 22, 2008, at 8:35 PM, john kryst wrote:

Hi all,
          I have a little problem... R and R-free  from  
phenix.refine are  22.9 and 30.6 respectively.... when i validated  
in the rcsb server... sfcheck gave me a R and Rfree of 30.8 and  
37.8. I am aware that sfcheck never reproduces the result. but i am  
worried that the difference is quite large... indeed i have used TLS  
NCS and bulk solvent correction...

Did i do anything wrong... please help me

Thanks for your help

regards
John
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