Figure 26.1.3.7

Blake, C. C. F.; Fenn, R. H.; Johnson, L. N.; Koenig, D. F.; Mair, G. A.; North, A. C. T.; Oldham, J. W. H.; Phillips, D. C.; Poljak, R. J.; Sarma, V. R.; Vernon, C. A.

doi:10.1107/97809553602060000725

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

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International Tables for Crystallography (2006). Vol. F. ch. 26.1, p. 762 | 1 | 2 |

Figure 26.1.3.7

C. C. F. Blake,^a ^‡ R. H. Fenn,^a ^§ L. N. Johnson,^a ^*^¶ D. F. Koenig,^a ^‡‡ G. A. Mair,^a ^‡‡ A. C. T. North,^a ^§§ J. W. H. Oldham,^a ^¶¶ D. C. Phillips,^a ^¶¶ R. J. Poljak,^a ^‡‡‡ V. R. Sarma^a ^§§§ and C. A. Vernon^b ^¶¶

^a Davy Faraday Research Laboratory, The Royal Institution, London W1X 4BS, England, and ^bDepartment of Chemistry, University College London, Gower Street, London WC1E 6BT, England
Correspondence e-mail: louise@biop.ox.ac.uk

Figure 26.1.3.7

(a) Phase probability curve for a Bijvoet pair of reflections (broken lines) with the joint probability curve (full line) derived by the method of Blow & Rossmann (1961). (b) Isomorphous-replacement phase probability curve derived from the mean of $[F_{PH^{+}}]$ and $[F_{PH^{-}}]$ (broken line); anomalous-scattering probability curve (chain line); and joint probability curve (full line) derived by the method of North (1965), using $[E'(\hbox{anomalous}) = E(\hbox{isomorphous})]$ . (c) As (b), but with [E' = (1/3)E] . Reproduced with permission from North (1965). Copyright (1965) International Union of Crystallography.