Related Experiment Video
Updated: Apr 23, 2026

Imaging Integrin Tension and Cellular Force at Submicron Resolution with an Integrative Tension Sensor
Published on: April 25, 2019
Skelemin association with αIIbβ3 integrin: a structural model
Vitaliy Gorbatyuk1, Khiem Nguyen, Nataly P Podolnikova
1Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut at Storrs , Storrs, Connecticut 06269, United States.
This study models how skelemin links integrins to myosin, revealing a mechanism for cell adhesion and migration. This structural insight into focal adhesion development is crucial for understanding cell mechanics.
Area of Science:
- Cell Biology
- Biophysics
- Structural Biology
Background:
- Intracellular events regulating integrin affinity have been extensively studied.
- Mechanisms of adhesion-induced integrin clustering and focal adhesion formation remain under-investigated.
Purpose of the Study:
- To present a structural model of skelemin's tandem IgC2 domains bound to integrin αIIbβ3 cytoplasmic tails.
- To elucidate the link between cell adhesion receptors and myosin filaments.
Main Methods:
- Nuclear Magnetic Resonance (NMR) data analysis.
- Generation of a structural model for protein complex tertiary assembly.
Main Results:
- A structural model of skelemin IgC2 domains complexed with integrin αIIbβ3 cytoplasmic tails was generated.
- The model suggests a connection between integrins and myosin filaments.
Conclusions:
- The identified connection provides a basis for generating mechanical forces in cell migration.
- This finding advances the understanding of focal adhesion development and cell remodeling.
More Related Videos
06:27A 3D Spheroid Model as a More Physiological System for Cancer-Associated Fibroblasts Differentiation and Invasion In Vitro Studies
Published on: August 8, 2019
07:55Analyzing Cell Surface Adhesion Remodeling in Response to Mechanical Tension Using Magnetic Beads
Published on: March 8, 2017
Related Concept Videos
Integrins
Some ECM proteins assemble into a basement membrane to which the remaining components adhere. Proteoglycans typically form the bulk of the ECM while fibrous proteins, like collagen,...
Intracellular Signaling Affects Focal Adhesions
Some...
Activation of Integrins
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
Anchoring Junctions
Structural Protein Function
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Structural Protein Function