Figure 4 - full size

 

Figure 4.
Figure 4. Topology diagrams for (a) the middle domain and (b) the C-terminal domain. (c) Topology of a jelly-roll fold, as occurs in many viral capsid proteins. (d) The b-annulus connecting the middle and C-terminal domains. The amino acids and hydrogen bonding between subunits A, B and C are shown.

The above figure is reprinted by permission from Cell Press: Structure (1999, 7, 1213-1222) copyright 1999.