Related Experiment Video
Updated: May 21, 2026

Exploring Protein-Glycan Interactions: Advances in Nuclear Magnetic Resonance
Published on: August 26, 2025
Isotherm of ligand adsorption on DNA at multiplicative noise
Valeri Arakelyan1, Sos Harutyunyan, Vardan Andriasyan
1Department of Molecular Physics, Yerevan State University, Alek Manukyan 5, 0049, Yerevan, Armenia. v.arakelyan@ysu.am
Abstract:
Fluctuations of the number of ligands adsorbed on macromolecules are considered in the case when the number of ligands in the solution fluctuates under the action of fluctuations of the external medium (external noise). For the case of small filling, the multiplicative type of stochastic differential equation is obtained, describing the time variation of the number of ligands adsorbed on macromolecules. The isotherm of adsorption of ligands on DNA is obtained. It is shown that at small ligand concentrations, for some relations between adsorption parameters and the intensity of the external noise, no macromolecule adsorption of ligands takes place.
Related Concept Videos
Adsorption Isotherms I
The Equilibrium Binding Constant and Binding Strength
Cooperative Binding of Transcription Regulators
Adsorption Isotherms II

