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(a) Structures of FRET donor NBD-PE and acceptor Rh-PE. (b) Fluorescence spectra of NBD/Rh-labeled fluid G7-glycoliposomes alone (black), after the addition of Triton X-100 (green), or E. coli ORN208 immediately (red) and after 1 h incubation (blue). Excitation: 460 nm.
