Figure 18.3.2.1

Engh, R. A.; Huber, R.

doi:10.1107/97809553602060000695

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. 18.3, p. 387 | 1 | 2 |

Figure 18.3.2.1

R. A. Engh^a ^* and R. Huber^b

^a Pharmaceutical Research, Roche Diagnostics GmbH, Max Planck Institut für Biochemie, 82152 Martinsried, Germany, and ^bMax-Planck-Institut für Biochemie, 82152 Martinsried, Germany
Correspondence e-mail: engh@biochem.mpg.de

Figure 18.3.2.1

Torsion dependence of proline angle geometry. A one-dimensional frequency plot of either C—N—C^α or C—N—C^δ angles shows a broad and bimodal distribution. (a) A scatter plot of the two angles shows a very strong anticorrelation and suggests two minima. (b) Plotting either angle against the ω torsion angle resolves the broad distribution into two separate peaks.