Copper is one of the most essential transition metal in human body which serves as an essential cofactor for oxidative scavenging enzymes. Due to its redox property it has the ability to generate reactive oxygen species and play an important role in metabolism. Imbalance of copper homeostasis leads to diseases such as Menkes, Wilson’s disease and also in Alzheimer’s disease. So, it would be highly advantageous if we develop an efficient method for measuring copper through spectroscopic /fluoro spectroscopic methods without addition of any reagents. As we know that GFP is already used as fluorescent tag in prokaryotic system as well as in mammalian systems, so developing GFP based in vivo copper biosensing tag will help in identifying the copper based diseases and localization of copper ions in cell. In the current study we have developed a metal biosensor through unnatural amino acid mutagenesis where the metal chelating amino acid, L-DOPA was metabolically incorporated into GFP. The fluorescence of DOPA incorporated GFP specifically quenches in the presence of copper and fluorescence of the protein was recovered after adding a metal chelator. This strategy helps to develop a fluorescent protein based copper biosensor and also helps in developing microarray based copper quantitation
키워드
Coppermetal biosensorfluorescence
저자
Nadarajan Saravanan PRABHU [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
Niraikulam AYYADURAI [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
Kangavel DEEPANKUMAR [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
Young-Man SEO [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
Han-Seop BAE [ School of Biotechnology, Yeungnam University, Gyeongsan, South Korea. ]
SunGu LEE [ School of Chemical and Biochemical Engineering, Pusan National University, Busan, South Korea. ]
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