FIG. 6.

The carboxyl-terminal Eco1p/Ctf7p-homologous domain of Eso1p is essential to rescue the eso1-H17 mutant. N-terminally and C-terminally truncated eso1⁺ genes were constructed and assayed for the ability to rescue the eso1-H17 mutant. The intact Eso1p is shown at the top (referred to as full). The Eco1p/Ctf7p-homologous domain is grey, and the zinc finger motifs are black. The amino acid numbers are shown at each mutant. The ability of the deletion mutants to complement eso1-H17 cells is shown in the right columns. For complementation activity, see Materials and Methods.