Figure 4. DNA sequence chromatogram of CYP1B1 exon 3 equivalent to codon 431-434. A: The reference sequence derived from control is shown. B: Sequence derived from congenital glaucoma patient P69 shows heterozygous c.1294C>G and heterozygous c.1299G>A, which predicts codon change CTG>GTG and AAG>AAA and heterozygous p.L432V and p.K433K mutations, respectively.