OBO ID: GO:0035195
Term Name: miRNA-mediated post-transcriptional gene silencing Search Ontology:
Synonyms:
  • gene silencing by microRNA
  • gene silencing by miRNA
  • microRNA-mediated gene silencing
  • miRNA-mediated gene silencing
Definition: A post-transcriptional gene silencing pathway in which regulatory microRNAs (miRNAs) elicit silencing of specific target genes. miRNAs are endogenous 21-24 nucleotide small RNAs processed from stem-loop RNA precursors (pre-miRNAs). Once incorporated into a RNA-induced silencing complex (RISC), miRNAs can downregulate protein production by either of two posttranscriptional mechanisms: endonucleolytic cleavage of the RNA (often mRNA) or mRNA translational repression, usually accompanied by poly-A tail shortening and subsequent degradation of the mRNA. miRNAs are present in all the animals and in plants, whereas siRNAs are present in lower animals and in plants. (6)
References:
Ontology: GO: Biological Process    QuickGO    AmiGO
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