Fig. 7. The position of potential MYH13 regulatory regions based on phylogenetic footprinting. Phylogenetic footprinting identifies several highly conserved upstream and intronic regions between the human and mouse extraocular (EO) MYH genes. Conserved regions are depicted by open boxes. The positions of exons 1, 2 and 3 are indicated as filled boxes. The mouse genomic sequence spanning the myh13 gene (AC019008) was identified using Blast, and the exon boundaries were determined using GeneQuest.