non-coding RNA long non-coding RNA Alan Ruttenberg Long non-coding RNAs (long ncRNAs, lncRNA) are non-protein coding transcripts longer than 200 nucleotides. Should requested and then imported from ChEBI This somewhat arbitrary limit distinguishes long ncRNAs from small regulatory RNAs such as microRNAs (miRNAs), short interfering RNAs (siRNAs), Piwi-interacting RNAs (piRNAs), small nucleolar RNAs (snoRNAs), and other short RNAs WEB:https://en.wikipedia.org/w/index.php?title=Long_non-coding_RNA&oldid=687562040#Long non-coding RNA lncRNA