Figure 1.
A representation of interactions in a coiled coil. This coiled coil is the basic stretch (B-ZIP) module of the transcription factor Pap1 and shows three different kinds of stabilizing interactions between residues of the heptad of each interacting partner. The leucines of the leucine zipper in position four of the heptad are shown in yellow, an example of the attractive interaction between the residues of the fifth and seventh position is shown in red, and the interaction between the residue pair in the first position of the heptad is shown in violet.
