- PDB-3ept: Structure of the rebeccamycin biosynthetic enzyme RebC with reduc... -
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データベース: PDB / ID: 3ept
タイトル
Structure of the rebeccamycin biosynthetic enzyme RebC with reduced flavin
要素
RebC
キーワード
OXIDOREDUCTASE / flavin / Monooxygenase
機能・相同性
機能・相同性情報
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen / FAD binding / methyltransferase activity / methylation 類似検索 - 分子機能
温度: 298 K / pH: 7.4 詳細: 1.5 microliters of RebC (9 mg/mL in 150 mM NaCl, 10% glycerol, 25 mM HEPES pH 7.5) were incubated with 0.35 microliters of guanidine-HCl for 30 seconds, followed by addition of 1.5 ...詳細: 1.5 microliters of RebC (9 mg/mL in 150 mM NaCl, 10% glycerol, 25 mM HEPES pH 7.5) were incubated with 0.35 microliters of guanidine-HCl for 30 seconds, followed by addition of 1.5 microliters of precipitant solution (19% PEG-8000, 0.1 M HEPES pH 7.4), without mixing, at room temperature and sealed over a precipitant well solution. Immediately after set up, crystal trays were placed on a gel shaker and then, after 12 hours, transferred to a storage space in vibration-isolation. Reduced-RebC was generated by incubating a RebC crystal in a cryogenic solution (19% PEG-8000, 0.1 M HEPES pH 7.4, 20% glycerol) and adding an amount of solid sodium dithionite that is in slight excess of the point at which the crystal became completely clear, indicating that all FAD was reduced. The crystal was then flash-frozen in liquid nitrogen, VAPOR DIFFUSION, HANGING DROP, temperature 298K