snoZ7 RNA guides the methylation of 25S rRNA position A1372, whereas SnoR77Y guides the methylation of 18S rRNA at position U580. This family of snoRNAs has been found in plant species such as Arabidopsis thaliana.
This snoRNA is responsible for the methylation of a specific nucleotide (A1372) in 25S rRNA, whereas another member of this group, SnoR77Y, targets a different nucleotide (U580) in 18S rRNA. A similar snoRNA family has been found in plant species such as Arabidopsis thaliana.