miRNA

Term ID

SO:0000276

Synonyms

• INSDC_feature:ncRNA
• INSDC_qualifier:miRNA
• micro RNA
• microRNA
• small temporal RNA
• stRNA

Definition

Small, ~22-nt, RNA molecule that is the endogenous transcript of a miRNA gene (or the product of other non coding RNA genes). Micro RNAs are produced from precursor molecules (SO:0001244) that can form local hairpin structures, which ordinarily are processed (usually via the Dicer pathway) such that a single miRNA molecule accumulates from one arm of a hairpin precursor molecule. Micro RNAs may trigger the cleavage of their target molecules or act as translational repressors. (2)

References

• http://en.wikipedia.org/wiki/MiRNA
• http://en.wikipedia.org/wiki/StRNA

Ontology

Sequence Ontology