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. 25.2, p. 706   | 1 | 2 |

Section 25.2.2.2. Program operation

K. D. Cowtan,b* K. Y. J. Zhangc and P. Maind

25.2.2.2. Program operation

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DM and DMMULTI are largely automatic; in order to perform a phase-improvement calculation only two tasks are required of the user:

  • (1) Provide the input data. These must include the reflection data and solvent content, and may also include averaging operators, solvent mask and averaging domain masks.

  • (2) Select the appropriate density modifications and the phase-combination mode to be used in the calculation.

DM and DMMULTI can run with the minimum input above, since the optimum choices for a whole range of parameters are set in the program defaults. For some special problems it may be useful to control the program behaviour in more detail; this is possible through a wide range of keywords to override the defaults. These are all detailed in the documentation supplied with the software.








































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