MicroRNA 941-1 is a human specific microRNA that is encoded by the MIR941-1 gene.[3]

MIR941-1
Identifiers
AliasesMIR941-1, MIRN941-1, mir-941-1, microRNA 941-1
External IDsGeneCards: MIR941-1; OMA:MIR941-1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

n/a

n/a

RefSeq (protein)

n/a

n/a

Location (UCSC)Chr 20: 63.92 – 63.92 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.[3]

Evolution

edit

The miR-941 gene is only found in humans where it first appeared between one and six million years ago. Its copy number and binding sites have decreased with migration out of Africa. miR-941 regulates genes involved in cellular differentiation and neurotransmitter signalling.[4]

References

edit
  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000283206Ensembl, May 2017
  2. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. ^ a b "Entrez Gene: MicroRNA 941-1".
  4. ^ Hu HY, He L, Fominykh K, Yan Z, Guo S, Zhang X, Taylor MS, Tang L, Li J, Liu J, Wang W, Yu H, Khaitovich P (October 2012). "Evolution of the human-specific microRNA miR-941". Nat Commun. 3: 1145. Bibcode:2012NatCo...3.1145H. doi:10.1038/ncomms2146. PMC 3493648. PMID 23093182.