Cited by 751Developmental Biology and Gene RegulationMicroRNA in disease regulationPlant Molecular Biology Research

The lin-41 RBCC Gene Acts in the C. elegans Heterochronic Pathway between the let-7 Regulatory RNA and the LIN-29 Transcription Factor

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Slack, Frank J, Basson, Michael, Liu, Zhongchi, Ambros, Victor, Horvitz, H.Robert, Ruvkun, Gary·2000·Molecular Cell

Abstract

Null mutations in the C. elegans heterochronic gene lin-41 cause precocious expression of adult fates at larval stages. Increased lin-41 activity causes the opposite phenotype, reiteration of larval fates. let-7 mutations cause similar reiterated heterochronic phenotypes that are suppressed by lin-41 mutations, showing that lin-41 is negatively regulated by let-7. lin-41 negatively regulates the timing of LIN-29 adult specification transcription factor expression. lin-41 encodes an RBCC protein, and two elements in the lin-413'UTR are complementary to the 21 nucleotide let-7 regulatory RNA. A lin-41::GFP fusion gene is downregulated in the tissues affected by lin-41 at the time that the let-7 regulatory RNA is upregulated. We suggest that late larval activation of let-7 RNA expression downregulates LIN-41 to relieve inhibition of lin-29.

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Crossref · 10.1016/s1097-2765(00)80245-2

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Authors
Slack, F. J., Basson, M., Liu, Z., Ambros, V., Horvitz, H. R., & Ruvkun, G.
Affiliations
  • Harvard University (US)
  • Howard Hughes Medical Institute (US)
  • Dartmouth College (US)
Corresponding author
Ruvkun, Gary
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2000-04
Volume
5
Issue
4
Pages
659-669
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2123580197
Cited by
751
References
42
Citations by year
2026: 8 · 2025: 9 · 2024: 20 · 2023: 23 · 2022: 18 · 2021: 26 · 2020: 21 · 2019: 32 · 2018: 24 · 2017: 27 · 2016: 21 · 2015: 30 · 2014: 24 · 2013: 36 · 2012: 26
FWCI
11.80
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • U.S. Public Health Service (GM34028)
  • Israel National Road Safety Authority (GM18663, GM24663)
  • National Institutes of Health (GM44619)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
Keywords
lin-41, heterochrony, let-7 microRNA, Caenorhabditis elegans, developmental timing, 3' untranslated region, microRNA target regulation, larval development
MeSH terms
Alleles, Amino Acid Sequence, Animals, Base Sequence, DNA-Binding Proteins, Multigene Family, Molecular Sequence Data, Mutation, Time Factors, Tissue Distribution, Transcription Factors, Down-Regulation, Helminth Proteins, Zinc Fingers, Caenorhabditis elegans, Genes, Helminth, Gene Expression Regulation, Developmental, RNA, Helminth, Body Patterning, 3' Untranslated Regions, Caenorhabditis elegans Proteins

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