Figure 2. A schematic representation of the human PAX6 and expressed sequence tags (ESTs) initiating from intronic regions. The upper panel illustrates the structure of the human PAX6. Only the genomic region containing the coding exons is depicted with arrows indicating the location of the initiation codons. The regions covered by each of the eight spliced ESTs containing intronic sequences are depicted below. Spliced out regions are illustrated as a thin line.