MicroRNA 222 is a MicroRNA that in humans is encoded by the MIR222 gene, and is a known extracellular RNA (exRNA).[3]

MIR222
Identifiers
AliasesMIR222, MIRN222, miRNA222, mir-222, microRNA 222
External IDsOMIM: 300569; GeneCards: MIR222; OMA:MIR222 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

n/a

n/a

RefSeq (protein)

n/a

n/a

Location (UCSC)Chr X: 45.75 – 45.75 Mbn/a
PubMed search[2]n/a
Wikidata
View/Edit Human

Function

edit

microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding.

The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products.

The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes _target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the _target mRNA. The RefSeq represents the predicted microRNA stem-loop.

References

edit
  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000207725Ensembl, May 2017
  2. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. ^ "Entrez Gene: MicroRNA 222".


This article incorporates text from the United States National Library of Medicine, which is in the public domain.


  NODES
Note 1