Figure 7. Structures of hetero-oligomer complexes. Eluting protein peaks from SEC-MALS were further analyzed by far-UV CD (A, B) and fluorescence spectrometry with excitation at 283 nm (C, D). Data were obtained of individual β-subunits (A, C) and complexes of βB1:βA3 WT or DM (B, D) and indicated similar structure of the the βB1:βA3 WT and βB1:βA3 DM complexes.