bZIP family DBPs utilize distinct shape-motifs and in different combinations. Shape-motifs for ten bZIP proteins; H, M, P, and R denote motifs for HelT, MGW, ProT, and Roll, respectively. X-axis shows the positions along the shape-motif; Y-axis shows the range of shape-feature at each position of the shape-motif. A feature is omitted for a DBP if the DBP does not have a shape-motif for that feature. DBPs have shape-motifs for different combinations of features. When two DBPs have a shape-motif for the same feature, they may be broadly similar (e.g., FOSL1 and CEBPB HelT) or quite distinct (e.g., FOS1 versus NRF1 ProT).