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Summary of conformational changes induced by flavin reduction in TcUGM and AfUGM (stereographic views). (A) Oxidized TcUGM (PDB code 4DSG). (B) Oxidized AfUGM crystallized in space groups P6522 (cyan, PDB code 3UTE) and P1 (yellow, PDB code 3UKH). (C) Superposition of reduced TcUGM (gray, 4DSH) and reduced AfUGM (green, 3UTF).
