Reference - Detail
| RRC ID | 53874 |
|---|---|
| Author | Röper JC, Mitrossilis D, Stirnemann G, Waharte F, Brito I, Fernandez-Sanchez ME, Baaden M, Salamero J, Farge E. |
| Title | The major β-catenin/E-cadherin junctional binding site is a primary molecular mechano-transductor of differentiation in vivo. |
| Journal | Elife |
| Abstract |
In vivo, the primary molecular mechanotransductive events mechanically initiating cell differentiation remain unknown. Here we find the molecular stretching of the highly conserved Y654-β-catenin-D665-E-cadherin binding site as mechanically induced by tissue strain. It triggers the increase of accessibility of the Y654 site, target of the Src42A kinase phosphorylation leading to irreversible unbinding. Molecular dynamics simulations of the β-catenin/E-cadherin complex under a force mimicking a 6 pN physiological mechanical strain predict a local 45% stretching between the two α-helices linked by the site and a 15% increase in accessibility of the phosphorylation site. Both are quantitatively observed using FRET lifetime imaging and non-phospho Y654 specific antibody labelling, in response to the mechanical strains developed by endogenous and magnetically mimicked early mesoderm invagination of gastrulating Drosophila embryos. This is followed by the predicted release of 16% of β-catenin from junctions, observed in FRAP, which initiates the mechanical activation of the β-catenin pathway process. |
| Volume | 7 |
| Published | 2018-7-19 |
| DOI | 10.7554/eLife.33381 |
| PII | 33381 |
| PMID | 30024850 |
| PMC | PMC6053302 |
| MeSH | Amino Acid Sequence Animals Armadillo Domain Proteins / chemistry Armadillo Domain Proteins / metabolism* Binding Sites Cadherins / chemistry Cadherins / metabolism* Cell Differentiation* Drosophila Proteins / chemistry Drosophila Proteins / metabolism* Drosophila melanogaster / cytology* Drosophila melanogaster / metabolism* Fluorescence Resonance Energy Transfer Mechanotransduction, Cellular Molecular Dynamics Simulation Phosphorylation Protein Binding Protein Conformation Proto-Oncogene Proteins pp60(c-src) / chemistry Proto-Oncogene Proteins pp60(c-src) / metabolism Sequence Homology Transcription Factors / chemistry Transcription Factors / metabolism* |
| IF | 7.08 |
| Times Cited | 13 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 24 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Drosophila | 7873R-2 |