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Weights are the same. 5.4 has a lot of small bug fixes and  
performance enhancement and some added stability things.
And some new features I am planning to announce soon.

Since I am responsible, my extremely biased view is that 5.4 is better.


Garib

On 5 Dec 2007, at 13:05, Jianghai Zhu wrote:

> Hi all,
>
> I updated refmac5.3 to refmac5.4 and found out that the reported  
> RMSDs are quite different from these two versions even the refining  
> protocols are the same.
>
> refmac5.3
> rmsBOND	rmsANGLE rmsCHIRAL	
> 	0.006		0.694		0.046
>
> refmac5.4
> rmsBOND	rmsANGLE rmsCHIRAL
> 	0.015		1.150		0.004
>
> The R and Rfree are very similar from these two versions of  
> refmac5.  Does refmac5.4 have different geometry weights from  
> refmac5.3?  Which one is more reasonable?
>
> Thanks.
>
> Jianghai
>
>
> +++++++++++++++++++++++++++++++
> Jianghai Zhu, Ph.D
> CBR Institute for Biomedical Research
> Department of Pathology
> Harvard Medical School
> 200 Longwood Ave., Boston, MA 02115
> Ph: 617-278-3211
> Fx: 618-278-3232
> +++++++++++++++++++++++++++++++
>
>
>