molecular-simulation
Molecular simulation uses computational methods to model the structure, dynamics, and interactions of molecules, from small compounds to large biomolecules, based on physical and chemical principles. In plant science, this approach helps researchers predict how proteins, enzymes, and metabolites behave and interact at the atomic level, offering insights that are difficult or impossible to obtain through laboratory experiments alone. Such simulations can accelerate understanding of processes like enzyme function, hormone signaling, and plant-pathogen interactions, ultimately supporting efforts in crop improvement and stress resistance research.
open_in_new WikipediaPubMed · 2026-06-29
Computer simulations show that brassinolide, a plant growth hormone structurally similar to animal cholesterol, crosses the plasma membrane via a thermodynamically distinct route compared to common plant sterols. The findings clarify how these hormones reach the protein pumps that export them from the cell, advancing understanding of a process essential to plant development.
All-atom molecular dynamics simulations revealed thermodynamic differences between brassinolide and β-sitosterol passive transport across an asymmetric plant plasma membrane.
The simulations identified a specific diffusion pathway by which brassinolide becomes exposed to the entry sites of the ABCB1 and ABCB19 transporter proteins.
Brassinolide distributes asymmetrically between the disordered inner membrane leaflet and the tightly packed, sphingolipid-rich outer leaflet, a pattern distinct from β-sitosterol.