Green fluorescent protein (GFP) Nobel Prize protein from jellyfish is a versatile reporter protein for monitoring gene expression and protein localization in variety of systems. Applications using GFP reporters have expanded greatly due to the availability of mutants with altered spectral prosperities, including several blue emission variants, all of which contains the single point mutation in tyrosine analogue in green fluorescent protein chromophore. Generally, GFP variants will be generated through replacement of naturally occurring amino acids by site directed mutation or directed evolution methodology and disadvantages of this methodology is limited with 20 naturally occurring side chains. In other hand unnatural amino acid mutagenesis has been used to selectively substitute target amino acids with our interesting side chains in our objective protein. Current studies have explored incorporation of unnatural amino acid analogues into green fluorescent protein and alter the spectral emission and excitation properties. We have selected different tyrosine analogues and successfully incorporated into GFP to alter the specific characters. We have selected the tyrosine analogues due to the important role in the chromophore and structure formation. Current study not only demonstrated the importance of unnatural amino acid mutagenesis and also demonstrated new approach to generate tailormade proteins with interesting and useful spectral properties
키워드
Green fluorescent proteinunnatural amino acidprotein engineering
저자
Niraikulam AYYADURAI [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
Sun-Gu LEE [ Chemical Engineering, Busan National University ]
Hyungdon YUN [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
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