<p>Organization of the <i>CST1</i>-<i>5</i> genes in human (<i>Homo sapiens</i>), chimpanzee (<i>Pan troglodytes</i>), orangutan (<i>Pongo abelii</i>), gorilla (<i>Gorilla gorilla</i>), rhesus monkey (<i>Macaca mulatta</i>), marmoset (<i>Callithrix jacchus</i>), rat (<i>Rattus norvegicus</i>), mouse (<i>Mus musculus</i>), pig (<i>Sus scrofa</i>), cattle (<i>Bos taurus</i>) and dog (<i>Canis lupus familiaris</i>). The transcriptional orientation of the genes is shown; the pseudogenes are highlighted in yellow (data from ENSEMBL and NCBI databases). The genes used in the subsequent analysis are highlighted in blue.</p
