Table 1. Human Noncoding RNAs.
| Symbol | Name | Length (nt) | Function |
|---|---|---|---|
| tRNA | transfer RNA | 73–93 | Amino acid incorporation into protein. |
| rRNA | ribosomal RNA | 121–5070 | Ribosome production |
| snRNA | small nuclear RNA | 100-300 | Removal of introns from spliceosome |
| snoRNA | small nuclear RNA | 70 | Modification of rRNAs |
| TERC | telomerase RNA | 451 | Template for telomere synthesis |
| miRNA | microRNA | 20–23 | Regulation of gene expression |
| piRNA | piwi-interacting RNA | 25–33 | Silencing of transposons |
| T-UCR | transcribed ultra-conserved region | > 350 | Potential regulation of RNA levels |
| lncRNA | long noncoding RNA | > 200 | Control of mRNA & miRNA expression |