Figure 3. DNA sequence chromatogram of CYP1B1
exon 2 equivalent to codon 339-342. A: The reference sequence
derived from control is shown. B: Sequence derived from
congenital glaucoma patient P56 shows heterozygous c.1020G>T change,
which predicts a codon change CAG>CAT and heterozygous p.Q340H
mutation.