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 Results for DC.creator="G." AND DC.creator="J." AND DC.creator="Kleywegt" in section 21.1.7 of volume F   page 1 of 3 pages.
A compendium of quality criteria
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7, pp. 652-658 [ doi:10.1107/97809553602060000879 ]
... covalent attachments, saccharides, metals, ions; van Aalten et al., 1996; Kleywegt & Jones, 1998). 21.1.7.1. Data quality | | Although many quality and ... of making an incorrect space-group assignment (Marsh, 1995, 1997; Kleywegt et al., 1996). Once the first data set has ... calculated at this stage to detect any purely translational NCS (Kleywegt & Read, 1997).] Once the final model is available, ...

Difference density quality
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4.5, p. 658 [ doi:10.1107/97809553602060000879 ]
... to ~3Ĺ resolution. References Akker, F. van den & Hol, W. G. J. (1999). Difference density quality (DDQ): a method to assess ...

Noncrystallographic symmetry
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4.4, p. 658 [ doi:10.1107/97809553602060000879 ]
... of the experimental data or a manifestation of refinement artifacts (Kleywegt & Jones, 1995b; Kleywegt, 1996). However, it has been found that electron-density ... data) with observed ones (manifest in the final refined models; Kleywegt, 1999). This method uses a local density-correlation ...

Coordinate error estimates
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4.3, pp. 657-658 [ doi:10.1107/97809553602060000879 ]
... the problems with conventional R values (discussed in Section 21.1.7.4.1), Kleywegt et al. (1994) instead plotted free R values to obtain ... modification turned out to yield fairly reasonable values in practice (Kleywegt & Brünger, 1996; Brünger, 1997). Read (1986, 1990 ... for crystallography. Methods Enzymol. 277, 366-396. Cruickshank, D. W. J. (1949). The accuracy of electron-density maps in ...

Real-space fits
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4.2, p. 657 [ doi:10.1107/97809553602060000879 ]
... interpretation. Methods Enzymol. 277, 173-208. Jones, T. A., Zou, J.-Y., Cowan, S. W. & Kjeldgaard, M. (1991). Improved methods ... models. Acta Cryst. A47, 110-119. Vaguine, A. A., Richelle, J. & Wodak, S. J. (1999). SFCHECK: a unified set of procedures for ...

R values
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4.1, p. 657 [ doi:10.1107/97809553602060000879 ]
... the free R value (Rfree; Brünger, 1992a, 1993, 1997; Kleywegt & Brünger, 1996), whose definition is identical to that of ... to deceptively low conventional R values (Jones et al., 1991; Kleywegt & Jones, 1995b; Kleywegt & Brünger, 1996). Brünger suggests a threshold ...

Model versus experimental data
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.4, pp. 657-658 [ doi:10.1107/97809553602060000879 ]
... the free R value (Rfree; Brünger, 1992a, 1993, 1997; Kleywegt & Brünger, 1996), whose definition is identical to that of ... to deceptively low conventional R values (Jones et al., 1991; Kleywegt & Jones, 1995b; Kleywegt & Brünger, 1996). Brünger suggests a threshold ...

Model quality, temperature factors
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.3, pp. 656-657 [ doi:10.1107/97809553602060000879 ]
... B factor than a correct model at a similar resolution (Kleywegt & Jones, 1995b). Average (and minimum and maximum) temperature-factor ... which may be a consequence of problems in the model (Kleywegt et al., 1996). Other statistics pertain to the r.m.s. ... chain, the sum of the occupancies should be unity. References Kleywegt, G. J., Hoier, H. & Jones, T. A. (1996). ...

Miscellaneous
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.2.7, p. 656 [ doi:10.1107/97809553602060000879 ]
... indication of `quality' or, rather, convergence (Carson et al., 1994; Kleywegt & Jones, 1996a). Crude models tend to undergo much larger ... have formulated single-number geometrical quality criteria, which they dubbed `G factors' in analogy to crystallographic R values. These G factors combine the results of a number of quality ...

Solvent molecules
Kleywegt, G. J.  International Tables for Crystallography (2012). Vol. F, Section 21.1.7.2.6, p. 656 [ doi:10.1107/97809553602060000879 ]
... have been modelled as water molecules could be something else (Kleywegt & Jones, 1997). A method to check if water molecules ... be detected by protein crystallography? Acta Cryst. D55, 479-483. Kleywegt, G. J. & Jones, T. A. (1997). Model-building and ...

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