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

International Tables for Crystallography (2006). Vol. F. ch. 11.5, p. 239   | 1 | 2 |

Section 11.5.7.2. R factor as a function of `sum-of-partialities' (method 1)[link]

C. G. van Beek,a R. Bolotovskya§ and M. G. Rossmanna*

aDepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907-1392, USA
Correspondence e-mail:  mgr@indiana.bio.purdue.edu

11.5.7.2. R factor as a function of `sum-of-partialities' (method 1)[link]

| top | pdf |

In order to determine the limits of tolerance that can be permitted when method 1[link] is used, the R factor was examined as a function of the sum-of-partialities for the ϕX174 procapsid data (Fig. 11.5.7.4[link]). Reflections with sum-of-partialities of [1 \pm 0.3] were used. The R factor changes sharply when the sum-of-partialities is outside [1 \pm 0.15]. Hence, [\pm 0.15] were acceptable limits of tolerance for this data set.

[Figure 11.5.7.4]

Figure 11.5.7.4 | top | pdf |

R factor as a function of the difference of calculated `sum-of-partialities' and unity for the estimates of full reflections when method 1[link] is used for the scaling and averaging of a ϕX174 data set (Dokland et al., 1997[link]).








































to end of page
to top of page