Fig. 7
From: Nuclear fate of yeast snoRNA is determined by co-transcriptional Rnt1 cleavage

Model for box C/D snoRNA maturation in yeast. Co-transcriptional cleavage mediated by Rnt1 removes the cap structure from box C/D pre-snoRNA and so directs the precursor to the snoRNP synthesis pathway in WT cells. In the rnt1Δ strain, retained m7G cap marks the RD box C/D pre-snoRNA as mRNA resulting in cytoplasmic localization of 5ʹ and 3ʹunprocessed snoRNA