Development of a specific growth inhibitor for cyanobacteria, targeting the pathway for a photosynthetic membrane lipid.

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K12609
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental impact assessment
• Research Institution: Shizuoka University
• Principal Investigator: Awai Koichiro 静岡大学, 電子工学研究所, 准教授 (80431732)
• Co-Investigator(Kenkyū-buntansha): 山崎 俊正 国立研究開発法人農業・食品産業技術総合研究機構, 高度解析センター, チーム長 (40360458)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: チラコイド膜 / ガラクト脂質 / シアノバクテリア / 阻害剤 / 膜貫通タンパク質

Outline of Final Research Achievements

To develop compounds that inhibit the cyanobacteria specific synthetic pathway for photosynthetic membrane lipid, selection of proteins suitable for high-throughput screening with a chemical library and development of an assay system were conducted. First, a glycolipid synthase (MgdA) from the cyanobacterium Synechocystis sp. PCC 6803 was tested but the SN ratio was not enough high for the screening. Among six MgdA proteins examined, MgdA of a thermophilic cyanobacteria showed approximately twice as much activity compare to that of Synechocystis sp. PCC 6803. This MgdA protein of thermophilic cyanobacteria is now expressed in E. coli with tag for affinity purification. Using this tagged protein, we would like to establish a detection system using a fluorescent probe.

Free Research Field

植物脂質生理学