your search
 Results for by Cowtan, K. D.
Preparation of input data
Cowtan, K. D., Zhang, K. Y. J. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.3.3, pp. 407-408 [ doi:10.1107/97809553602060000849 ]
be provided. References Brünger, A. T. (1992). X-PLOR. Version 3.1. A system for X-ray crystallography and NMR. Yale University Press, New Haven. Google Scholar Cowtan, K. D. & Main, P. (1998 ...

Density-modification modes
Cowtan, K. D., Zhang, K. Y. J. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.3.4.1, pp. 408-409 [ doi:10.1107/97809553602060000849 ]
modification technique and is powerful for improving phases at fixed resolution, but weaker at extending phases to higher resolution. Its phasing power is highly dependent on the solvent content. Solvent flattening can be applied at com­paratively low ...
     [more results from section 15.3.4 in volume F]

Scaling
Cowtan, K. D., Zhang, K. Y. J. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.3.5.1, pp. 410-411 [ doi:10.1107/97809553602060000849 ]
it is important that this value be entered correctly. However, the volume of the solvent mask may be varied independently of the true solvent content, as discussed in Section 15.3.3 . References Cowtan, K. D. & Main, P. (1998 ...
     [more results from section 15.3.5 in volume F]

DM/DMMULTI software for phase improvement by density modification
Cowtan, K. D., Zhang, K. Y. J. and Main, P., International Tables for Crystallography (2012). Vol. F, ch. 15.3, pp. 407-412 [ doi:10.1107/97809553602060000849 ]
A 48, 301–312. Google Scholar Collaborative Computational Project, Number 4 (1994). The CCP4 suite: programs for protein crystallography . Acta Cryst. D 50, 760–763. Google Scholar Cowtan, K. D. & Main, P. (1996 ...

Program operation
Cowtan, K. D., Zhang, K. Y. J. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.3.2, pp. 407-407 [ doi:10.1107/97809553602060000849 ]
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 ...

Introduction
Zhang, K. Y. J., Cowtan, K. D. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.1.2.1.1, pp. 386-387 [ doi:10.1107/97809553602060000847 ]
of a smoothed `modulus' electron density, which is the sum of the absolute values of all density points within a small box. References Bhat, T. N. & Blow, D. M. (1982). A density-modification method for the improvement of poorly ...
     [more results from section 15.1.2 in volume F]

Example
Zhang, K. Y. J., Cowtan, K. D. and Main, P., International Tables for Crystallography (2012). Vol. F, Section 15.1.7, pp. 398-399 [ doi:10.1107/97809553602060000847 ]
881–882. Google Scholar Zhang, K. Y. J., Cowtan, K. D. & Main, P. (1997). Combining constraints for electron density modification. In Macromolecular Crystallography, edited by C. W. Carter & R. M. Sweet, Vol. 277, pp. 53–64. New ...

Phase improvement by iterative density modification
Zhang, K. Y. J., Cowtan, K. D. and Main, P., International Tables for Crystallography (2012). Vol. F, ch. 15.1, pp. 385-400 [ doi:10.1107/97809553602060000847 ]
S., Tsao, J. & Rossmann, M. G. (1992). Ab initio phase determination for spherical viruses: parameter determination for spherical-shell models . Acta Cryst. A 48, 301–312. Google Scholar Cowtan, K. D. (1999). Error estimation ...

powered by swish-e
























































to end of page
to top of page