Cited by 75Developmental Biology and Gene RegulationGenomics and Chromatin DynamicsGene Regulatory Network Analysis

An otx cis -regulatory module: a key node in the sea urchin endomesoderm gene regulatory network

Open access
Yuh, Chiou-Hwa, Dorman, Elizabeth R, Howard, Meredith L, Davidson, Eric H·2004·Developmental Biology

Abstract

An essential node in the gene regulatory network (GRN) for endomesoderm specification in the sea urchin embryo lies within the regulatory system of the otx gene. According to the predictions of the GRN, based on perturbation analysis and expression data, the beta1/2 transcription unit of this gene is engaged during specification in interactions with two other regulatory genes, krox and gatae. It is predicted to be driven into activity by the krox gene, to form a positively reinforcing functional loop with the gatae gene, and to respond to its own output as well. Here we isolate the relevant otx cis-regulatory element, and examine the specific input predictions of the GRN at the level of its genomic DNA sequence. This beta1/2-otx regulatory module performs the necessary functions, as shown by use of expression constructs. It requires gatae, otx, and krox inputs, as predicted, and it operates as an "AND" logic processor in that removal of any one of these inputs essentially destroys activity. The necessary target sites were identified in the module sequence, and mutation of these sites was demonstrated to produce the same respective effects on construct expression as does blocking its regulatory inputs by treatment with morpholino antisense oligonucleotides. For spatial expression in the endoderm, one particular pair of Gata sites is essential and these function synergistically with an adjacent Otx site. We thus demonstrate directly the structure/function relationships of the genomic regulatory code, at this key node of the endomesoderm GRN.

Integrity signals

Registry

Crossref · 10.1016/j.ydbio.2004.02.025

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • There is a compensatory cis-regulatory change upstream of the kernel, in the substitution of blimp1 in the sea urchin for tbr as an early cis-regulatory input initiating otx expression.

    “In addition, there is a compensatory cis -regulatory change upstream of the kernel, in the substitution of blimp1 in the sea urchin for tbr as an early cis -regulatory input initiating otx expression (29, 30).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Yuh, C.-H., Dorman, E. R., Howard, M. L., & Davidson, E. H.
Affiliations
California Institute of Technology (US)
Corresponding author
Davidson, Eric H
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2004-05
Volume
269
Issue
2
Pages
536-551
ISSN
0012-1606 (ISSN-L)
OpenAlex
W2017132951
Cited by
75
References
34
Citations by year
2025: 4 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 6
FWCI
3.80
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
  • National Institutes of Health (5p01hd037105-20)
  • National Institute of General Medical Sciences (GM 61005, R01GM061005)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD37105)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
cis-regulatory modules, endomesoderm specification, gene regulatory networks, sea urchin embryo, transcription factor binding sites, morpholino antisense oligonucleotides, structure-function relationship
MeSH terms
Animals, Endoderm, Mesoderm, Sea Urchins, Homeodomain Proteins, Gene Expression Regulation, Developmental, Otx Transcription Factors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review