snoRNA R38 belongs to 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 R38 is a member of the C/D box category of snoRNAs, distinguished by the presence of the characteristic sequences C box (UGAUGA) and D box (CUGA), which play a crucial role in its function.