@article{oai:niigata-u.repo.nii.ac.jp:00001611,
 author = {Shinoda, Kouhei and Hasegawa, Takuji and Sato, Hiroaki and Shinozaki, Masaaki and Kuramoto, Hirotomo and Takamiya, Yosuke and Sato, Tsutomu and Nikaidou, Naoki and Watanabe, Takeshi and Hoshino, Tsutomu},
 issue = {40},
 journal = {Chemical communications, Chemical communications},
 month = {Aug},
 note = {A biosynthetic intermediate of violacein produced by the mixed enzymes of VioABDE was elucidated to be 5-(5-hydroxy-1H-indol-3-yl)-3-(1H-indol-3-yl)-1H-pyrrole-2-carboxylic acid, named protoviolaceinic acid, indicating that VioC, responsible for the final biosynthetic step, works to oxygenate at the 2-position of the right side indole ring, and that the oxygenation reaction to form the central pyrrolidone core proceeds in a non-enzymatic fashion.},
 pages = {4140--4142},
 title = {Biosynthesis of violacein: a genuine intermediate, protoviolaceinic acid, produced by VioABDE, and insight into VioC function},
 volume = {2007},
 year = {2007}
}