Figure 5

FIG. 5. 77-K fluorescence emission spectra for PSI-fractions of Synechocystis. a, a comparison of spectra for free CP43', PSI trimers, and CP43'-PSI supercomplex as marked. b, fluorescence emission before (trace A) and after (trace B) adding 0.1% Triton X-100 to the CP43'-PSI supercomplex.