Figure 9. Identification of a “Relic sequence” in S. cerevisiae.

Upper part (Hap4) is the N-ter Hap4 motif with small extensions (the motif itself spans aminoacids 60 to 76). Bottom part (Yap7) is a small sequence in the Yap7 protein which is 68% similar to the upper sequence. Yap7 is a member of the bZIP family of S. cerevisiae transactivators. Its function is not precisely known [50]. Refer to Fig 1 for the various motifs of these proteins.