<div class="gmail_quote">On Thu, Feb 25, 2010 at 10:52 AM, Sam Stampfer <span dir="ltr"><<a href="mailto:Samuel.Stampfer@tufts.edu">Samuel.Stampfer@tufts.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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.<br>
</blockquote><div><br></div><div>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 (<a href="http://www.ncbi.nlm.nih.gov/pubmed/19237753">http://www.ncbi.nlm.nih.gov/pubmed/19237753</a>).</div>
<div><br></div><div>But if it saves you time, an R-free of 24 is unusually good for that resolution.</div><div><br></div><div>Nat</div></div>