Figure 3.

Quantum yields in fluorescence emission (Φ_fluor). A, comparison of Φ_fluor for +MGDG and −MGDG proteoliposomes measured for 475 nm and 420 nm excitation (indicated). The data were measured on pairs of +MGDG and −MGDG proteoliposomes prepared at the same day. Φ_fluor for +MGDG was normalized to the same day −MGDG counterpart (set to 1). Data are from 11 pairs. Error bars represent S.D. and ***, indicates p value of <0.001 (Student's t test). The mol % of the +MGDG samples is about 20%. B, dependence of mol % MGDG in proteoliposomes on Φ_fluor. The mol % of MGDG was determined by TLC.