International
Tables for
Crystallography
Volume F
Crystallography of biological macromolecules
Edited by M. G. Rossmann and E. Arnold

© International Union of Crystallography 2006
International Tables for Crystallography (2006). Vol. F. ch. 21.3, p. 525   | 1 | 2 |

Figure 21.3.5.5 

O. Dym,a D. Eisenbergb* and T. O. Yeatesc

aUCLA–DOE Laboratory of Structural Biology and Molecular Medicine, UCLA, Box 951570, Los Angeles, CA 90095-1570, USA, bUCLA–DOE Laboratory of Structural Biology and Molecular Medicine, Department of Chemistry & Biochemistry, Molecular Biology Institute and Department of Biological Chemistry, UCLA, Los Angeles, CA 90095-1570, USA, and  cUCLA–DOE Laboratory of Structural Biology and Molecular Medicine, Department of Chemistry & Biochemistry and Molecular Biology Institute, UCLA, Los Angeles, CA 90095-1569, USA
Correspondence e-mail:  david@mbi.ucla.edu

[Figure 21.3.5.5]
Figure 21.3.5.5

Evaluation of old and revised models in a database survey by ERRAT. (a) Percentage of residues within the 95% confidence limit given by ERRAT as a function of the resolution to which the structure was determined. Each arrow represents an obsolete structure (arrow tail) and the revised structure that replaced it (arrow head). The revised structures (typically analysed at finer resolution) show markedly improved ERRAT scores. (b) Correlation between the percentage of a structure within the 95% confidence limit according to ERRAT, and the percentage of residues in the most favoured regions of a Ramachandran diagram according to PROCHECK.