Reference - Detail
| RRC ID | 84118 |
|---|---|
| Author | Popiel EM, Ahluwalia R, Schuetz S, Yu B, Derry WB. |
| Title | MRCK-1 activates non-muscle myosin for outgrowth of a unicellular tube in Caenorhabditis elegans. |
| Journal | Development |
| Abstract |
The formation and patterning of unicellular biological tubes is essential for metazoan development. It is well established that vascular tubes and neurons use similar guidance cues to direct their development, but the downstream mechanisms that promote the outgrowth of biological tubes are not well characterized. We show that the conserved kinase MRCK-1 and its substrate the regulatory light chain of non-muscle myosin, MLC-4, are required for outgrowth of the unicellular excretory canal in C. elegans. Ablation of MRCK-1 or MLC-4 in the canal causes severe truncations with unlumenized projections of the basal membrane. Structure-function analysis of MRCK-1 indicates that the kinase domain, but not the small GTPase-binding CRIB domain, is required for canal outgrowth. Expression of a phosphomimetic form of MLC-4 rescues canal truncations in mrck-1 mutants and shows enrichment at the growing canal tip. Moreover, our work reveals a previously unreported function for non-muscle myosin downstream of MRCK-1 in excretory canal outgrowth that may be conserved in the development of seamless tubes in other organisms. |
| Volume | 151(23) |
| Published | 2024-12-1 |
| DOI | 10.1242/dev.202772 |
| PII | 363264 |
| PMID | 39494605 |
| PMC | PMC11634028 |
| MeSH | Animals Caenorhabditis elegans* / embryology Caenorhabditis elegans* / genetics Caenorhabditis elegans* / metabolism Caenorhabditis elegans Proteins* / genetics Caenorhabditis elegans Proteins* / metabolism Mutation / genetics Myosins / genetics Myosins / metabolism |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | Bluesky |
| Total number of mentions | 7 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| C.elegans | tmC16 tmIs1237 |