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제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Protein Structural Dynamics of Photoactive Yellow Protein in Wild-type and E46Q Mutant Revealed by Pump-Probe X-ray Solution Scattering

등록일
2012년 2월 21일 10시 50분 23초
접수번호
1304
발표코드
PHYS.P-491 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
김태우, 김종구, 김영민, 이효철
KAIST 화학과, Korea
Photoactive yellow protein (PYP), belonging to the class of photoreceptor protein, plays critical role in receiving external light that give rise to the responses required for biological function. However, the previous studies about the structural dynamics of photoactive yellow protein doesn’t show the unified kinetic framework, but also the intermediate structures included in the photocycle under solution phase were rarely explored by the experimental methods. To probe the structural change during the photocycle in solution, we employ pump-probe X-ray solution scattering. By the analysis of both kinetics and structures of intermediates, the structural dynamics of wild-type PYP and its mutant (E46Q) accompanies the characteristic intermediate (pR and pB) and the signaling state (pB) shows the protrusion of N-terminus.

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