Characterization of far7 to far11 null mutants by halo assay. Halo assays were performed as described in Materials and Methods, using 2 μg of α-factor applied to a lawn of MATa cells. Strains were as follows: wild type (WT), SY2227; far1, SY2673; far3, SY4062; far7, SY4059; far8, SY4061; far9, SY4060; far10, SY4063; and far11, SY4064.