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  • 08월 28일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Calculation of Free Energy Surface and Kinetic constant of a Simple Protein Folding Model

등록일
2008년 8월 12일 11시 46분 58초
접수번호
1290
발표코드
31P125포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
이은상, 정연준
서울대학교 화학부, Korea
We study a simple model system, called the Muñoz-Eaton (ME) model, to calculate the free energy surface and the folding rate of protein folding processes. The Muñoz-Eaton model is a lattice-based model and it involves a binary variable to represent two conformational states, native or unfolded states in a protein structure. Interactions between the side chains are determined by a contact map, which takes a form of a lower triangular matrix. We use several approximate methods to calculate the free energy surface by performing Monte Carlo simulations on the model. We also invoke the transfer-matrix formalism to obtain an exact solution of the ME model. Based on the exact solution, we study the dynamics of a protein with a known native state and equilibrium population. Applications to several proteins including a cold-shock protein A, are presented.

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