ACA68 was originally cloned from HeLa cells  and belongs to the H/ACA box class of snoRNAs as it has the predicted hairpin-hinge-hairpin-tail structure, has the conserved H/ACA-box motifs and is found associated with GAR1 protein.
ACA68 originated from HeLa cells  and belongs to the H/ACA box category of small nucleolar RNAs (snoRNAs) due to its predicted hairpin-hinge-hairpin-tail structure, conserved H/ACA-box motifs, and association with GAR1 protein.