GO:0097493 structural molecule activity conferring elasticity: Mechanism, Genes and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0097493 describes a molecular function in which a molecule contributes to the structural integrity of a complex or assembly while providing elasticity and recoiling.
• Elastin is the archetypal protein conferring elasticity in the extracellular matrix, and its synthesis is tightly regulated during development and repair.
• Elasticity arises from the entropic recoil of cross-linked, disordered polypeptide networks, a principle also observed in synthetic and DNA-based elastic materials.
• Membrane lipids such as docosahexaenoic acid and sphingomyelin modulate elastic stress and phase behavior, influencing the mechanical environment of embedded proteins.
• Actin-binding proteins such as Ena/VASP determine actin network stiffening, showing that elasticity is a property of assembled cytoskeletal complexes.
• Single-molecule and material-science approaches, including low-humidity DNA mechanics and combinatorial DNA rings, provide quantitative frameworks for studying elastic recoil.
Description
GO:0097493, structural molecule activity conferring elasticity, is a molecular function term that captures the ability of a molecule to contribute to the structural integrity of a complex or assembly while providing elasticity and recoiling. Unlike general structural molecule activity, this term specifically emphasizes reversible deformation and recovery of shape, a property essential for tissues that must stretch and recoil, such as blood vessels, lung, and skin. The concept extends beyond canonical elastic proteins to include any molecular assembly whose components impart elastic behavior, including membrane lipid environments and engineered DNA structures. Understanding this function is important because loss of elasticity underlies diverse pathologies, from vascular stiffening to impaired tissue repair, and because elastic properties can be engineered for biomaterials and drug delivery. Researchers studying GO:0097493 need to connect molecular-level recoil mechanisms to cellular and tissue-level mechanics, often using genetic models to test causality.
structural molecule activity conferring elasticity At A Glance
| GO ID | GO:0097493 |
|---|---|
| GO term | structural molecule activity conferring elasticity |
| Ontology | molecular_function |
| Synonym | None listed in QuickGO |
| Major function | Contributes to structural integrity of a complex or assembly while providing elasticity and recoiling |
| Definition source | QuickGO definition |
| Related molecules | Elastin, actin-binding proteins, membrane lipids, engineered DNA assemblies |
| Cellular context | Within or outside a cell, including extracellular matrix and cytoskeleton |
| Research relevance | Tissue mechanics, vascular biology, biomaterials, single-molecule elasticity |
What Is GO:0097493?
According to the Gene Ontology, GO:0097493 (structural molecule activity conferring elasticity) is defined as the action of a molecule that contributes to the structural integrity of a complex or assembly within or outside a cell, providing elasticity and recoiling. In other words, the molecule is not merely a static scaffold; it stores and releases mechanical energy, allowing the assembly to deform and return to its original shape. This function can be performed by extracellular matrix proteins such as elastin, by cytoskeletal networks, or by engineered molecular assemblies, and it is distinct from catalytic or signaling activities.
Why Is structural molecule activity conferring elasticity Important in Cell Biology?
GO:0097493 is important because elasticity is a fundamental mechanical property of many biological assemblies, and its dysregulation is linked to disease and aging. Elastin, the best-characterized protein conferring elasticity, is essential for the recoil of arteries, lungs, and skin, and its synthesis is regulated by developmental and injury signals. Beyond elastin, elastic behavior emerges from collective interactions in actin networks, lipid membranes, and even synthetic DNA structures, making this GO term relevant to cell biology, biophysics, and materials science. Studying this function helps researchers understand how tissues withstand mechanical stress and how to design elastic biomaterials for regenerative medicine.
• Elasticity is required for the function of blood vessels, lungs, and skin, where elastin provides reversible recoil.
• Loss of elastic fibers contributes to vascular stiffening and impaired tissue repair.
• Membrane lipid composition, including docosahexaenoic acid, modulates elastic stress and protein function.
• Actin-binding proteins such as Ena/VASP determine the stiffness of actin networks, linking molecular elasticity to cell mechanics.
• Single DNA molecules exhibit measurable elasticity that depends on hydration, informing biophysical models.
• Engineered DNA rings can assemble into macroscopic elastic gels, demonstrating programmable elasticity.
• Membrane dipole modifiers alter elastic stress near ion channels, affecting channel behavior.
• Lipid phase coexistence can influence the mechanical properties of membranes.
• Bioactive soft materials with neuroactive ions show how elasticity can be combined with biological function.
• Understanding GO:0097493 supports the design of elastic biomaterials and drug delivery systems.
What Happens During structural molecule activity conferring elasticity?
Synthesis and Assembly of Elastic Components
In simple terms: The cell builds elastic molecules and assembles them into networks.
Elastin synthesis is regulated transcriptionally and post-transcriptionally, and the protein is secreted and cross-linked into elastic fibers in the extracellular matrix. This assembly provides the structural integrity and recoil characteristic of elastic tissues.
Cross-linking and Network Formation
In simple terms: Elastic molecules are linked together to form a stretchy network.
Cross-linking of elastin monomers creates a stable network that can stretch and recoil. Similar principles apply to engineered DNA rings that assemble into elastic gels through combinatorial interactions.
Mechanical Deformation and Recoil
In simple terms: The network stretches under force and springs back when the force is removed.
Elastic recoil is driven by entropy: stretched polypeptide chains return to a more disordered state. Single-molecule studies of DNA show that hydration and humidity affect elastic behavior, providing a model for understanding recoil.
Regulation by Cellular and Matrix Signals
In simple terms: Cells control how much and when elastic molecules are made.
Elastin synthesis is modulated by growth factors and cytokines during development and repair. Membrane lipid composition, such as docosahexaenoic acid levels, can alter elastic stress in membranes and influence embedded proteins.
Integration with Cytoskeletal and Membrane Mechanics
In simple terms: Elastic molecules work together with the cytoskeleton and membranes to determine cell shape.
Actin-binding proteins like Ena/VASP determine actin network stiffening, showing that elasticity is integrated with cytoskeletal dynamics. Membrane dipole modifiers can reduce elastic stress near ion channels, affecting their function.
Key Genes Involved in GO:0097493 structural molecule activity conferring elasticity
The following genes and proteins are representative of molecules that confer elasticity or modulate elastic properties in biological and engineered systems.
| Gene | Major Role | Research Relevance |
|---|---|---|
| ELN | Elastin, primary elastic protein of extracellular matrix | Vascular stiffness, lung disease, skin aging |
| FBN1 | Fibrillin-1, microfibril scaffold for elastin | Marfan syndrome, elastic fiber assembly |
| VASP | Actin-binding protein, regulates actin network stiffening | Cytoskeletal mechanics, cell motility |
| ENAH | Ena/VASP family, actin binding | Actin network elasticity |
| DHA-related genes | Modulate membrane docosahexaenoic acid levels | Membrane elasticity and protein function |
| Sphingomyelin synthases | Produce sphingomyelin, affect lipid phases | Membrane mechanics and phase coexistence |
| Nystatin-related channels | Model channels affected by membrane elastic stress | Membrane elasticity and channel function |
| DNA-based assemblies | Engineered DNA rings for elastic gels | Programmable elasticity in biomaterials |
| Magnesium ion/polymer hybrids | Bioactive soft materials with neuroactive ions | Elastic biomaterials for neural applications |
| Actin (ACTB, ACTG1) | Cytoskeletal filament, contributes to cell elasticity | Cell mechanics, cytoskeleton research |
| Myosin motors | Generate tension, interact with actin networks | Mechanical properties of cytoskeleton |
| Tropoelastin (ELN) | Soluble precursor of elastin | Elastin synthesis and assembly |
| Lysyl oxidase (LOX) | Cross-links elastin and collagen | Elastic fiber maturation |
| Integrins | Link extracellular matrix to cytoskeleton | Mechanotransduction and elasticity |
| Focal adhesion kinase (FAK) | Signals from mechanical cues | Elasticity sensing |
| Dystrophin (DMD) | Links cytoskeleton to membrane | Muscle elasticity and disease |
| Titin (TTN) | Muscle elastic protein | Sarcomere elasticity |
How Is structural molecule activity conferring elasticity Regulated?
Elastin synthesis is regulated at transcriptional and post-transcriptional levels by growth factors, cytokines, and mechanical signals. Membrane lipid composition, including docosahexaenoic acid, can modulate elastic stress and influence the function of embedded proteins. Actin-binding proteins such as Ena/VASP are regulated by signaling pathways that control their localization and activity, thereby determining actin network stiffening. These regulatory layers ensure that elasticity is tuned to the mechanical demands of the tissue.
structural molecule activity conferring elasticity and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| ELN | Vascular stiffness, cutis laxa | ELN knockout or point-mutation cell models |
| FBN1 | Marfan syndrome | FBN1 knock-in mutations in fibroblasts |
| VASP | Cell migration, metastasis | VASP knockout cancer cell lines |
| DMD | Duchenne muscular dystrophy | DMD knockout myoblasts |
| TTN | Cardiomyopathy | TTN truncation knock-in cardiomyocytes |
Vascular Stiffness and Cardiovascular Disease
Loss of elastic fibers in arteries leads to vascular stiffening, a hallmark of aging and hypertension. Elastin degradation and defective synthesis contribute to arterial wall remodeling and increased pulse pressure.
Marfan Syndrome and Connective Tissue Disorders
Mutations in fibrillin-1 (FBN1) impair elastic fiber assembly, causing Marfan syndrome with aortic aneurysm and skeletal abnormalities. This highlights the importance of microfibril scaffolds for elastin function.
Membrane Elasticity and Channelopathies
Altered membrane lipid composition can change elastic stress near ion channels, affecting channel gating and cellular excitability. Such changes are implicated in disorders of membrane mechanics.
Muscle and Cytoskeletal Elasticity
Defects in elastic proteins like titin or dystrophin impair muscle recoil and lead to muscular dystrophies. Actin network stiffening by Ena/VASP is also relevant to cell migration and metastasis.
From structural molecule activity conferring elasticity-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of ELN reduce elastic recoil? | ELN knockout cell line |
| Does a point mutation in FBN1 impair microfibril assembly? | FBN1 point-mutation knock-in |
| Can tagged elastin track fiber assembly? | Tagged knock-in of ELN |
| Does VASP overexpression increase actin network stiffness? | VASP overexpression cell line |
| Can engineered DNA rings form elastic gels? | DNA ring assembly in vitro |
| How does membrane lipid composition affect elasticity? | Lipid-modified cell membranes |
How to Study the structural molecule activity conferring elasticity Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Atomic force microscopy | Elastic modulus and recoil at nanoscale | Single-molecule elasticity |
| Optical tweezers | Force-extension of single molecules | DNA and protein elasticity |
| Rheology | Bulk elastic modulus | Hydrogels and tissues |
| Fluorescence microscopy | Localization of elastic proteins | Elastin fiber assembly |
| Electron microscopy | Ultrastructure of elastic fibers | Microfibril organization |
| Patch-clamp | Channel activity under membrane stress | Membrane elasticity effects |
| Lipid phase assays | Phase coexistence and membrane order | Membrane mechanics |
Single-Molecule Force Spectroscopy
Atomic force microscopy and optical tweezers measure the elastic recoil of single molecules such as DNA or elastin, providing quantitative force-extension curves.
Rheology and Material Testing
Macroscopic rheology measures the elastic modulus of tissues, hydrogels, or engineered DNA gels, linking molecular elasticity to bulk mechanical properties.
Imaging of Elastic Fibers
Fluorescence and electron microscopy visualize elastin and microfibril assembly in cells and tissues, revealing structural integrity.
Membrane Mechanics Assays
Lipid bilayer models and patch-clamp electrophysiology assess how membrane composition and elastic stress affect channel function.
How CRISPR Can Be Used to Study GO:0097493 structural molecule activity conferring elasticity
Knockout
CRISPR knockout of ELN or VASP can test whether loss of these genes reduces elastic recoil or actin network stiffness in cell models.
Point Mutation
Introducing disease-associated point mutations in FBN1 or ELN via CRISPR allows study of impaired elastic fiber assembly.
Knock-in
Tagged knock-in of elastin or fibrillin enables live-cell imaging of elastic fiber dynamics.
Overexpression
Overexpression of VASP or elastin can enhance elastic properties and test sufficiency in cellular models.
How EDITGENE Supports structural molecule activity conferring elasticity Research
Researchers studying structural molecule activity conferring elasticity-related genes often need to determine whether a candidate gene is causally involved in elastic recoil, network assembly, or disease-associated stiffness. CRISPR-based cell models provide a controlled way to test these hypotheses.
Contact EDITGENE today to design your custom CRISPR model for structural molecule activity conferring elasticity research.
Frequently Asked Questions About structural molecule activity conferring elasticity
What is GO:0097493?
GO:0097493 is a Gene Ontology molecular function term for structural molecule activity conferring elasticity, defined as the action of a molecule that contributes to structural integrity while providing elasticity and recoiling.
What genes are involved in structural molecule activity conferring elasticity?
Key genes include ELN (elastin), FBN1 (fibrillin-1), and VASP, which contribute to elastic fiber assembly and actin network stiffening.
How is elasticity measured in biological systems?
Techniques such as atomic force microscopy, optical tweezers, and rheology measure elastic recoil at molecular and bulk levels.
What diseases are linked to defective elasticity?
Vascular stiffness, Marfan syndrome, and muscular dystrophies are associated with defects in elastic proteins.
Can CRISPR be used to study elasticity genes?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models allow functional testing of elasticity-related genes.
What is the role of elastin in tissues?
Elastin provides reversible recoil in arteries, lungs, and skin, and its synthesis is regulated during development and repair.
How do membrane lipids affect elasticity?
Lipids such as docosahexaenoic acid and sphingomyelin modulate elastic stress and phase behavior in membranes.
What is the difference between structural molecule activity and elasticity-conferring activity?
Elasticity-conferring activity specifically requires reversible deformation and recoil, whereas general structural activity may only provide static support.
What model systems are used to study elasticity?
Cell lines, engineered DNA gels, and lipid bilayer models are commonly used.
How can I create a knockout of ELN?
EDITGENE provides custom CRISPR knockout cell lines for ELN and other elasticity genes.
Conclusion
GO:0097493 captures a specialized molecular function that bridges structural support and mechanical recoil, with elastin as the archetypal example. Understanding this function requires integrating molecular, cellular, and material-level approaches, from single-molecule force spectroscopy to CRISPR-based genetic models. As research uncovers new elastic molecules and engineered assemblies, the term will continue to guide studies in tissue mechanics, disease, and biomaterials.
References
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- 2. Stillwell W et al.. 2003. Docosahexaenoic acid: membrane properties of a unique fatty acid.. Chem Phys Lipids 126(1):1-27 PMID: 14580707
- 3. Sun L et al.. 2019. Molecularly engineered metal-based bioactive soft materials - Neuroactive magnesium ion/polymer hybrids.. Acta Biomater 85:310-319 PMID: 30586648
- 4. Gentry BS et al.. 2012. Multiple actin binding domains of Ena/VASP proteins determine actin network stiffening.. Eur Biophys J 41(11):979-90 PMID: 23052975
- 5. Hormeño S et al.. 2012. Mechanical stability of low-humidity single DNA molecules.. Biopolymers 97(4):199-208 PMID: 22020764
- 6. Speed SK et al.. 2026. Assembling a True "Olympic Gel" From over 16 000 Combinatorial DNA Rings.. Adv Mater 38(34):e20549 PMID: 41789447
- 7. Chulkov EG et al.. 2015. Membrane dipole modifiers modulate single-length nystatin channels via reducing elastic stress in the vicinity of the lipid mouth of a pore.. Biochim Biophys Acta 1848(1 Pt A):192-9 PMID: 25223717
- 8. Kinoshita M et al.. 2014. Coexistence of two liquid crystalline phases in dihydrosphingomyelin and dioleoylphosphatidylcholine binary mixtures.. Biochim Biophys Acta 1838(5):1372-81 PMID: 24468063
