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MIR20A microRNA 20a [ Gallus gallus (chicken) ]

Gene ID: 777935, updated on 6-Sep-2025
Symbol
MIR20Aprovided by CGNC
Full Name
microRNA 20aprovided by CGNC
Primary source
CGNC:59215
See related
Ensembl:ENSGALG00010006324 miRBase:MI0001181
Gene type
ncRNA
RefSeq status
PROVISIONAL
Organism
Gallus gallus
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda; Coelurosauria; Aves; Neognathae; Galloanserae; Galliformes; Phasianidae; Phasianinae; Gallus
Also known as
MIRN20A; mir-20a; gga-mir-20a
Summary
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. [provided by RefSeq, Sep 2009]
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See MIR20A in Genome Data Viewer
Location:
chromosome: 1
Exon count:
1
Annotation release Status Assembly Chr Location
106 current bGalGal1.mat.broiler.GRCg7b (GCF_016699485.2) 1 NC_052532.1 (148016592..148016689, complement)
106 current bGalGal1.pat.whiteleghornlayer.GRCg7w (GCF_016700215.2) 1 NC_052573.1 (148009599..148009696, complement)

Chromosome 1 - NC_052532.1Genomic Context describing neighboring genes Neighboring gene glypican 5 Neighboring gene microRNA 92a-1 Neighboring gene microRNA 19b-1 Neighboring gene microRNA 19a Neighboring gene microRNA 18a

Go to nucleotide: Graphics FASTA GenBank

Related articles in PubMed

  1. E2F1-miR-20a-5p/20b-5p auto-regulatory feedback loop involved in myoblast proliferation and differentiation. Luo W, et al. Sci Rep, 2016 Jun 10. PMID 27282946, Free PMC Article
  2. MicroRNA profile of Marek's disease virus-transformed T-cell line MSB-1: predominance of virus-encoded microRNAs. Yao Y, et al. J Virol, 2008 Apr. PMID 18256158, Free PMC Article
  3. Sequence and comparative analysis of the chicken genome provide unique perspectives on vertebrate evolution. International Chicken Genome Sequencing Consortium. Nature, 2004 Dec 9. PMID 15592404
  4. Birth and expression evolution of mammalian microRNA genes. Meunier J, et al. Genome Res, 2013 Jan. PMID 23034410, Free PMC Article
  5. miRBase: microRNA sequences, targets and gene nomenclature. Griffiths-Jones S, et al. Nucleic Acids Res, 2006 Jan 1. PMID 16381832, Free PMC Article

GeneRIFs: Gene References Into Functions

Other Names

  • microRNA mir-20a

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

RNA

  1. NR_031405.1 RNA Sequence

    Status: PROVISIONAL

    Source sequence(s)
    JAENSK010000025
    Related
    ENSGALT00010015076.1

RefSeqs of Annotated Genomes: Gallus gallus Annotation Release 106 details...Open this link in a new tab

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference bGalGal1.mat.broiler.GRCg7b Primary Assembly

Genomic

  1. NC_052532.1 Reference bGalGal1.mat.broiler.GRCg7b Primary Assembly

    Range
    148016592..148016689 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate bGalGal1.pat.whiteleghornlayer.GRCg7w

Genomic

  1. NC_052573.1 Alternate bGalGal1.pat.whiteleghornlayer.GRCg7w

    Range
    148009599..148009696 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)
Nucleotide Protein
Heading Accession and Version

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