Figure 3.
RAD, shown in yellow, bound within the N-terminal domain of the yeast Hsp90 (PDB ID: 1BGQ). Hsp90 residues forming the binding site of this antibiotic molecule are shown in blue. Indicated in brown is the conserved leucine residue that is altered to an isoleucine in the Hsp90 of Humicola fuscoatra, thus generating partial RAD resistance [60]. Indicated in magenta is the conserved methionine (Met84) that is altered to phenylalanine in Hsp90 of the maize pathogen Colletotrichum graminicola.