• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2022 Fiscal Year Final Research Report

Development of a methodology of analyzing molecular association processes in heterogeneous environments

Research Project

  • PDF
Project/Area Number 21K14589
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionOsaka University

Principal Investigator

Kasahara Kento  大阪大学, 大学院基礎工学研究科, 助教 (10824469)

Project Period (FY) 2021-04-01 – 2023-03-31
Keywords分子動力学シミュレーション / 分子会合 / 溶液統計力学 / 2分子反応ダイナミクス理論 / 拡散律速反応理論 / タンパク質ーリガンド結合 / 包接
Outline of Final Research Achievements

Molecular association process is one of the most fundamental processes in various fields of science. For example, many proteins express their biological function upon substrate (ligand) binding. In this research, we developed a methodology for realizing atomistic description of molecular association kinetics based on bimolecular reaction theory and molecular dynamics simulation. The developed theory is applied to the host-guest binding systems consisting of beta-cyclodextrin and small guest molecules, and a protein-ligand binding system in a polymer crowded solution. Furthermore, we constructed an method of systematically analyzing the association kinetics in terms of the thermodynamics and kinetics of the intermediate state existing in the binding processes.

Free Research Field

溶液統計力学

Academic Significance and Societal Importance of the Research Achievements

反応を考慮した厳密な運動方程式から出発して,系統的な近似によって得られた速度定数の理論的表式と分子動力学シミュレーションによって得られる不均一系に関するリアリスティックな数値情報を組み合わせることで,分子会合の速度定数の計算および系統立てた解析を実現したことに学術的な意義がある.応用において重要となるシクロデキストリンに対する小分子の包接過程への適用や,細胞質などに代表される環境を模倣した高分子混雑環境に開発した手法を適用し,混雑環境が会合動力学に与える影響を同定したことに社会的意義がある.

URL: 

Published: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi