Figure 1
From: Regulatory non-coding RNA: new instruments in the orchestration of cell death

The biological significance of ncRNAs. (a) ncRNAs comprise 99% of primary RNA transcripts generated by the genomic transcription. (b) ncRNAs comprise 80 to 90% of the poly-A-tailed mature RNAs. (c) Over 60% of the protein-coding genes in human are targets of miRNA. (d) About 70% of the protein-coding genes have at least one homologous antisense (as)-lncRNA