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12:27
A Pipeline to Investigate the Structures and Signaling Pathways of Sphingosine 1-Phosphate Receptors
Published on: June 8, 2022
Structural insights into semaphorins and their receptors
Christian Siebold1, E Yvonne Jones
1Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK. Christian@strubi.ox.ac.uk
Seminars in Cell & Developmental Biology
|December 21, 2012
Summary
Structural biology advances reveal the atomic details of semaphorin-plexin interactions and plexin signaling complexes. This provides molecular insights into cell guidance cues and their receptors, advancing mechanistic understanding.
Area of Science:
- Cellular Biology
- Structural Biology
- Molecular Signaling
Background:
- The three-dimensional structure of semaphorin cell guidance cues and plexin receptors was unknown a decade ago.
- The semaphorin-plexin system mediates crucial cell surface signaling pathways.
Purpose of the Study:
- To elucidate the atomic-level structures of semaphorin-plexin complexes.
- To understand the molecular mechanisms underlying semaphorin-plexin signaling.
Main Methods:
- X-ray crystallography and cryo-electron microscopy for structural determination.
- Biochemical and biophysical assays to study interactions.
- Cellular studies to validate functional relevance.
Main Results:
- Detailed atomic structures of semaphorin and plexin ectodomains and their recognition complexes are now available.
- The structure of the plexin cytoplasmic region and its interaction with Rho GTPases have been resolved.
- Structural data provide insights into ligand-receptor recognition and downstream signaling.
Conclusions:
- Structural biology has significantly advanced the understanding of the semaphorin-plexin system.
- Molecular-level insights into cell guidance cue signaling have been achieved.
- This knowledge forms a basis for further mechanistic investigations.
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