Biomolecular Interactions
Biomolecular Interactions - Related Videos
05:21
Surface Plasmon Resonance to Study Biomolecular Interactions Using a Sensor Chip
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2025
This video describes the surface plasmon resonance, or SPR, technique for studying the interaction between two molecules using a sensor chip. The change in resonance angle and the intensity of the reflected light are detected as a function of the association and dissociation of two molecules, and this provides information about the interactions between the two molecules.
08:06
The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions
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Cited by 1 •
2018
In this work, we report a new method to study protein-protein interactions using a conductimetric biosensor based on the hybrid β-lactamase technology. This method relies on release of protons upon hydrolysis of β-lactams.
09:15
Measuring Biomolecular DSC Profiles with Thermolabile Ligands to Rapidly Characterize Folding and Binding Interactions
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Cited by 1 •
2017
We present a protocol for rapid characterization of biomolecular folding and binding interactions with thermolabile ligands using differential scanning calorimetry.
07:26
Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Cited by 6 •
2013
This paper describes the formation of highly ordered peptide-based structures by the spontaneous process of self-assembly. The method utilizes commercially available peptides and common lab equipment. This technique can be applied to a large variety of peptides and may lead to the discovery of new peptide-based assemblies.
09:17
3D Printing of Biomolecular Models for Research and Pedagogy
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Cited by 29 •
2017
Physical models of biomolecules can facilitate an understanding of their structure-function for the researcher, aid in communication between researchers, and serve as an educational tool in pedagogical endeavors. Here, we provide detailed guidance for the 3D printing of accurate models of biomolecules using fused filament fabrication desktop 3D printers.
FAQs
Specific recognition depends on how well two molecular surfaces match in shape and chemical properties. Complementary regions can align hydrogen-bonding groups, charged areas, hydrophobic portions, and sites for van der Waals contacts. The resulting pattern favors some partners over others, helping explain selective recognition in processes such as enzyme catalysis, receptor signaling, and gene regulation.
Hydrogen bonds, electrostatic attraction, hydrophobic effects, and van der Waals forces support associations through multiple chemical contacts, whereas some biomolecular interactions include covalent bond formation. This distinction affects how molecular partners associate and influence one another. Considering the interaction type helps clarify the chemical basis of recognition, regulation, and molecular assembly.
Interaction strength is sensitive to the chemical environment because pH, temperature, and solvent influence molecular structure and the behavior of interacting chemical groups. Changes in these conditions can alter electrostatic attraction, hydrogen bonding, hydrophobic effects, or other contacts. Consequently, the same molecular partners may associate differently under different experimental or biological conditions.
Mapping how proteins, nucleic acids, lipids, carbohydrates, or small molecules recognize one another can identify chemically important points of influence. Drug discovery uses this understanding to consider how a small molecule might affect a target interaction or its resulting activity. The broader goal is to develop compounds with targeted effects based on molecular complementarity and interaction strength.
In enzyme catalysis, selective molecular contacts help bring relevant partners together and influence how they act. In receptor signaling, recognition between molecular components can initiate or modify downstream effects. These examples show why interaction specificity matters in chemistry: molecular association is not merely structural, but can regulate function in biological systems.
Researchers apply interaction studies to biomaterial design, diagnostics, and targeted chemical probes, in addition to drug discovery. The measurements or analyses can reveal which molecular partners associate, how strongly and specifically they do so, and how conditions affect those relationships. Such information supports the design of materials, detection strategies, and chemical tools with selected molecular targets.