Crystallization and Preliminary X-ray Studies of an Electron-transfer Complex of Ferredoxin and Ferredoxin-dependent Glutamate Synthase from the Cyanobacterium Leptolyngbya Boryana
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Ferredoxin (Fd) dependent glutamate synthase (Fd-GOGAT) is a key enzyme involved in nitrogen assimilation that catalyzes the two-electron reductive conversion of Gln and 2-oxoglutarate to two molecules of Glu. Fd serves as an electron donor for Fd-GOGAT and the two proteins form a transient electron-transfer complex. In this study, these two proteins were cocrystallized using the hanging-drop vapour-diffusion method. Diffraction data were collected and processed at 2.65 Å resolution. The crystals belonged to space group P4(3), with unit-cell parameters a = b = 84.95, c = 476.31 Å.
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PMID: 25288260 DOI: 10.1007/s11120-014-0044-2.
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PMID: 23295475 PMC: 3539692. DOI: 10.1107/S1744309112051950.