This web page was produced as an assignment for an undergraduate course at Davidson College.

Figures 1 and 2:  These images show ribbon and cylinder representations of the structure of the Fas death domain.  The death domain consists of six antiparallel a helices.  Death domains have a tendency to self-associate and are found in many proteins involved with apoptosis, including Fas, TNFR and FADD.  The structure was solved using NMR-spectroscopy by Huang, Eberstadt, Olejniczak, Meadows, and Fesik.  The images are public property as a part of the international Protein Data Bank.