MEIS1 region is evolutionarily conserved. Top panel is the snap shot of the human MEIS1 locus between chr2: 66,500,000–66,700,000 (hg18) in the UCSC genome browser. The conservation tracks comparisons of human to mouse, frog (x_tropicalis) and zebrafish within this region are displayed. Bottom panel depicts an expanded detailed view of the MEIS1 promoter region. The annotated human transcription start site (AHTSS) of the reference gene MEIS1 is marked as position +1 bp (x axis).