* Richardson and Richardson (1989) Helix section of chapter 1 in Prediction of Protein Structure and the Principles of Protein Conformation (ed. Fasman), pp. 10-17.
* Richardson (1981) Anatomy & Taxonomy of Protein Structure, section II.A. Helices - read on-line (with updated annotations) from the link on BCH222 web page; view embedded kinemages by clicking on the KiNG icon. If needed, review the part of section I.B about dihedral angles and the Ramachandran plot.

There are two kinemage exercises this week, one on H-bonds and one on helices and Ramachandran plots; their worksheets and associated kinemages are available from the class website: http://kinemage.biochem.duke.edu/teaching/bch222/

Hydrogen Bond Worksheet  PDF version
Helix Worksheet   PDF version