ncRNAs:
- housekeeping ncNRAs (e.g. ribosomal, transfer, snRNAs, snoRNAs)
- regulatory ncRNAs (e.g. miRNAs, piRNAs, siRNAs and lncRNAs)
- other regulatory ncRNAs (e.g. promoter-associated RNAs (PARs) and enhancer RNAs (eRNAs))
LncRNAs may have different roles:
- gene activators (signaling),
- repressors (decoy),
- cis and trans gene expression regulators (guides) and
- chromatin modificators (scaffolds) without the need to be mutually exclusive.
lncRNA types:
- sense/antisense
- bidirectional
- intronic
- intergenic
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