Figure 23.2.4.3

Hodel, A. E.; Quiocho, F. A.

doi:10.1107/97809553602060000715

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. 23.2, p. 582 | 1 | 2 |

Figure 23.2.4.3

A. E. Hodel^a ^‡ and F. A. Quiocho^b

^aDepartment of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA, and ^bHoward Hughes Medical Institute and Department of Biochemistry, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA

Figure 23.2.4.3

A comparison of the orientations of α-helices bound in the major groove, taking examples from four DNA-binding proteins: the 434 repressor (Shimon & Harrison, 1993), the engrailed homeodomain (Kissinger et al., 1990), the trp repressor (Otwinowski et al., 1988a,b) and the Zif268 zinc finger (Pavletich & Pabo, 1991). The DNA backbone is shown as a brown ribbon, whereas the protein helix is shown as a blue ribbon.