From the limitation of 20 natural amino acids, the development of a method that allows us to encode extra amino acids genetically might facilitate the posttranslational modification of protein for various applications. Moreover, the ability to incorporate amino acids with desired properties at unique sites in proteins will provide powerful new tools for exploring protein structure and function in vitro and in vivo. Over 30 unnatural amino acids (UAA) —including those containing spectroscopic probes, metal chelators, photoaffinity labels and other chemical moieties —have been selectively incorporated into proteins with high fidelity and efficiency in response to unique codons1,2. Here we show new application of UAA for efficient surface-based protein analysis. For effective single-molecule FRET (smFRET) analysis of protein, site-specific dual-labeling with two fluorophores as an energy donor and an acceptor is crucial. We demonstrated that site-specific labeling of protein via incorporation of UAA enables a more effective smFRET analysis of protein3. Immobilization of proteins in a functionally active form and proper orientation is also crucial for effective surface-based analysis of protein-protein interaction. Here we present a general method for controlled and oriented immobilization of protein by site-specific incorporation of UAA and click chemistry.
키워드
unnatural amino acidsurface-based protein analysissingle molecule FREToriented immobilization
저자
Moon-Hyeong Seo [ Department of Biological Sciences ]
Hee-Sung Park [ Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea. ]
Hak-Sung Kim [ Department of Biological Sciences ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회