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![[Figure 4]](/d/issues/2012/04/00/ba5180/ba5180fig4mag.jpg)
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| Figure 4 Polygon images (Urzhumtseva et al., 2009  ) before (left) and after (right) re-refinement in phenix.refine for structures 1eic, 1g2y, 2elg and 2ppn. In all cases the polygon computed for structures before re-refinement in phenix.refine indicates one or more problems, for example high Rfree and Rwork and too small bond r.m.s.d. for 1eic or very high R factors and geometry deviations for 2elg (vertices are on the furthermost end of the histogram bar). Re-refinement in phenix.refine resulted in polygon vertices moved towards the center (squeezing the polygon) in
most cases, indicating improvement of the corresponding model characteristics. |
![[Figure 4]](https://journals.iucr.org/10.1107/S0907444912001308/ba5180fig4.jpg)
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STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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