FIG. 1.

Multiple alignment of the ATP-binding cassette of P. digitatum PMR1 and representative fungus and yeast homologues. The ABC sequence of PMR1 was aligned with those of AtrA from A. nidulans (6), PDR5 from S. cerevisiae (3), SNQ2 from S. cerevisiae (36), HBA2 from S. pombe (38), and CDR1 from C. albicans (29) in the NH₂-terminal (N) and COOH-terminal (C) domains. Bar above sequences indicate the Walker A and B and the ABC signature motifs. The amino acid residue number for each protein is indicated at the beginning of each sequence. Asterisks indicate identical residues.