Comparison of the genomic DNA sequences and deduced amino acid sequences of the ordA and ord1 genes of A. parasiticus SRRC 143 and SRRC 2043. The numbers on the left indicate the positions of the nucleotides, beginning from translation initiation codon ATG. The deduced amino acid sequence is numbered from the first amino acid, a methionine (M), and the translation termination (TAG) is indicated by an asterisk. For comparison, the nucleotide and deduced amino acid sequences of the ordA1 gene of SRRC 2043 are shown under the corresponding sequences; identical amino acid residues are represented by dots, and gaps are represented by dashes. The intron sequences are indicated by lowercase letters. The highly conserved regions of the amino acid sequences of the cytochrome P-450 enzymes are underlined, and the conserved amino acid residues are indicated by boldface type. The point mutations of three amino acid residues are also indicated by boldface type.