Enrichment of T nucleotide at cross-link sites induced by UV-C. (a) The nucleotide compositions around NSUN2 iCLIP cDNA truncations on the protein-coding genes (including introns). (b) Similar to (a), but iCLIP with Nova protein. (c) Similar to (a), but around Nova CLIP cDNA deletions. The deletion sites were re-defined as described in the main text. (d) Similar to (c), but around Ago CLIP cDNA deletions. (e) The proportion of the four types of YCAY motif around Nova CLIP cDNAs deletions. (f) Similar to (c), but around Nova iCLIP cDNA truncations.