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Characteristics of a glutamic acid derivative isolated from Brevibactorium and converted into the state of long living radical at the loss of electron
A. N. Bakh Institute of Biochemistry, Academy of Sciences of the USSR, Moscow; Institute of Energetic Problems of Chemical Physics, Academy of Sciences of the USSR, Moscow; N. D. Zelinsky Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow
Abstract: A derivative of glutamic acid, converted into the state of long living radical, is isolated from Brevibacterium ammoniagenes cells and, accordingly, named ammonigenin. Structure of lacton of N-hydroxy-N-(2-carbamoylethyl)-glutamyl-4-amino-2-hydroxy-butyric amide is suggested for the substance based on IR, ESR and NMR spectra and other data, with the paramagnetic centre localyzed at the nitroxyl group of the molecule. Possible participation of ammonigenin in the protection of cells against extreme factors of environment is discussed.
Russian Journal of Bioorganic Chemistry 1990, 16 (8):1080-1088