Cited by 56Genomics and Chromatin DynamicsDevelopmental Biology and Gene RegulationChromosomal and Genetic Variations

The words of the regulatory code are arranged in a variable manner in highly conserved enhancers

Open access
Rastegar, Sepand, Hess, Isabell, Dickmeis, Thomas, Nicod, Jean Christophe, Ertzer, Raymond, Hadzhiev, Yavor, Thies, Wolf-Gerolf, Scherer, Gerd +1 more·2008·Developmental Biology

Abstract

The cis-regulatory regions of many developmental regulators and transcription factors are believed to be highly conserved in the genomes of vertebrate species, suggesting specific regulatory mechanisms for these gene classes. We functionally characterized five notochord enhancers, whose sequence is highly conserved, and systematically mutated two of them. Two subregions were identified to be essential for expression in the notochord of the zebrafish embryo. Synthetic enhancers containing the two essential regions in front of a TATA-box drive expression in the notochord while concatemerization of the subregions alone is not sufficient, indicating that the combination of the two sequence elements is required for notochord expression. Both regions are present in the five functionally characterized notochord enhancers. However, the position, the distance and relative orientation of the two sequence motifs can vary substantially within the enhancer sequences. This suggests that the regulatory grammar itself does not dictate the high evolutionary conservation between these orthologous cis-regulatory sequences. Rather, it represents a less well-conserved layer of sequence organization within these sequences.

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Crossref · 10.1016/j.ydbio.2008.03.034

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  • Enhancers consistent with the billboard model are likely also widespread in vertebrate genomes.

    “Enhancers consistent with the billboard model are likely also widespread in vertebrate genomes [55, 93].”

    From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [93]

    In “Highly conserved non-coding sequences and transcriptional regulation” (page unavailable), the paper calls many enhancers loose, variable assemblies of binding sites and identifies that structure as the billboard model. It also finds billboard-like organization in five zebrafish notochord enhancers. Those examples support the possibility, but the paper does not establish how widespread billboard-like enhancers are across vertebrate genomes. (LLM, conf=0.83)

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1 of the 81 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Sambrook, J., Russel, C.W., 2001. Molecular Cloning: A Laboratory Manual. Cold Spring Laboratory Press, Cold Spring Harbor, NY.
  2. Westerfield, M., 1993. The Zebrafish Book. University of Oregon Press, Eugene.

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Authors
Rastegar, S., Hess, I., Dickmeis, T., Nicod, J. C., Ertzer, R., Hadzhiev, Y., Thies, W.-G., Scherer, G., & Strähle, U.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Freiburg (DE)
Corresponding author
  • Rastegar, Sepand
  • Strähle, Uwe
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2008-06
Volume
318
Issue
2
Pages
366-377
ISSN
0012-1606 (ISSN-L)
OpenAlex
W1982649864
Cited by
56
References
81
Citations by year
2025: 3 · 2024: 2 · 2023: 3 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 4 · 2017: 5 · 2016: 3 · 2015: 1 · 2014: 3 · 2013: 2 · 2012: 4
FWCI
2.32
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • European Commission
  • Deutsche Forschungsgemeinschaft
  • Institut National de la Santé et de la Recherche Médicale
  • Centre National de la Recherche Scientifique
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
cis-regulatory elements, enhancers, sequence conservation, synthetic enhancers, TATA box, zebrafish, developmental gene regulation, enhancer mutations
MeSH terms
Animals, Base Sequence, DNA Mutational Analysis, Enhancer Elements, Genetic, Humans, Notochord, Promoter Regions, Genetic, Zebrafish, Sequence Alignment, Conserved Sequence, Gene Expression Regulation, Developmental, HMGB Proteins, Zebrafish Proteins, Regulatory Elements, Transcriptional, Forkhead Transcription Factors, SOX9 Transcription Factor

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