Cited by 1,702MicroRNA in disease regulationDevelopmental Biology and Gene RegulationPlant Molecular Biology Research

MicroRNA-Directed Cleavage of HOXB8 mRNA

Yekta, Soraya, Shih, I-hung, Bartel, David P.·2004·Science

Abstract

MicroRNAs (miRNAs) are endogenous ∼22-nucleotide RNAs, some of which are known to play important regulatory roles in animals by targeting the messages of protein-coding genes for translational repression. We find that miR-196, a miRNA encoded at three paralogous locations in the A, B, and C mammalian HOX clusters, has extensive, evolutionarily conserved complementarity to messages of HOXB8, HOXC8 , and HOXD8 . RNA fragments diagnostic of miR-196–directed cleavage of HOXB8 were detected in mouse embryos. Cell culture experiments demonstrated down-regulation of HOXB8, HOXC8, HOXD8 , and HOXA7 and supported the cleavage mechanism for miR-196–directed repression of HOXB8 . These results point to a miRNA-mediated mechanism for the posttranscriptional restriction of HOX gene expression during vertebrate development and demonstrate that metazoan miRNAs can repress expression of their natural targets through mRNA cleavage in addition to inhibiting productive translation.

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Crossref · 10.1126/science.1097434

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  • MiR-196 is unusual among known animal miRNAs for its near-perfect complementarity to its HOXB8 target site and for inducing cleavage of the HOXB8 mRNA rather than inhibiting translation.

    “MiR-196 is unusual among known animal miRNAs for its near-perfect complementarity to its HOXB8 target site and for inducing cleavage of the HOXB8 mRNA rather than inhibiting translation (Yekta et al. 2004).”

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Authors
Yekta, S., Shih, I.-H., & Bartel, D. P.
Affiliations
Whitehead Institute for Biomedical Research (US)
Venue
Science
Published
2004-04-23
Volume
304
Issue
5670
Pages
594-596
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2042673698
Cited by
1,702
References
0
Citations by year
2026: 14 · 2025: 18 · 2024: 24 · 2023: 28 · 2022: 25 · 2021: 52 · 2020: 44 · 2019: 55 · 2018: 58 · 2017: 66 · 2016: 51 · 2015: 69 · 2014: 90 · 2013: 105 · 2012: 115
FWCI
51.35
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
Keywords
microRNA, miR-196, Hoxb8, mRNA cleavage, post-transcriptional regulation, protein synthesis inhibition, Hox genes, mouse embryo, gene downregulation, vertebrate development
MeSH terms
Animals, Base Sequence, Genes, Homeobox, HeLa Cells, Humans, Molecular Sequence Data, Neoplasm Proteins, RNA, Messenger, Transcription Factors, Transfection, Down-Regulation, Sequence Alignment, Genes, Reporter, Homeodomain Proteins, 3' Untranslated Regions, MicroRNAs, Mice

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