Skin color is determined by the amount of melanin present. Many enzymes have a relationship in m elanin synthesis. Especially, tyrosinase is well known as key enzyme for melanin synthesis. MITF (Microphthalmia-associated transcription factor), a bHLH (basic helix-loop-helix) transcription factor with a leucine zipper, is a key protein in regulation of the pigmentation process in melanocytes. Binding of the MITF to E-box induces transcription of several genes associated with pigmentation, including the tyrosinase gene. The purpose of this study is to evaluate the interaction of MITF with respective DNA binding site (E-box, CATGTG) by SPR (surface plasmon resonance). SPR, a label-free gold chip based DNA-protein interaction assay was used to evaluate the interactions. The MITF showed almost a twice higher resonance signal after binding with E-box, when compared to mutated E-box. We have also evaluated various parameters to stabilize the assay conditions and to reduce the false signals. We anticipate that evaluation of interaction provide a quantitative, comparative, highthroughput screening of MITF inhibitors, which will help to develop an effective methodology of screening of potential depigmenting agent.
저자
Eunki KIM [ Department of Biological Engineering, Inha University, 253 Yonghyun-Dong, Nam-Gu, Incheon 402-751, Republic of Korea. ]
Manki SON [ Department of Biological Engineering, Inha University, 253 Yonghyun-Dong, Nam-Gu, Incheon 402-751, Republic of 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
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