snoRNA Z17 is a member of the C/D box class of snoRNAs which contain the conserved sequence motifs known as the C box (UGAUGA) and the D box (CUGA).
snoRNA Z17 is a type of snoRNA that contains the typical C/D box motifs, namely the C box (UGAUGA) and the D box (CUGA), which are common to this class.