[phenixbb] Which is the website to check if we have a good r free value?

Nathaniel Echols nathaniel.echols at gmail.com
Thu Feb 25 11:26:53 PST 2010

On Thu, Feb 25, 2010 at 10:52 AM, Sam Stampfer <Samuel.Stampfer at tufts.edu>wrote:

> Does anyone know which website is the one where you can compare your pdb
> file to others of similar resolution to see whether your file has a good r
> free value for its resolution?  Specifically, I have a 2.8 Angstrom
> resolution structure with an rfree of 24.

Not a website: run phenix.polygon (or open the GUI, and click POLYGON in the
section for Validation tools).  See Urzhumtseva et al. (2009) Acta D 65:297
for details (http://www.ncbi.nlm.nih.gov/pubmed/19237753).

But if it saves you time, an R-free of 24 is unusually good for that

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