Figure 3
From: Structural analysis of a new carotenoid-binding protein: the C-terminal domain homolog of the OCP

Oligomeric state of holo- and apo-CCP2. Apo- (A) and holo- (B) CCP2 oligomerization states analyzed by analytical SEC with a Superdex 75 column. Protein molecular weight standards were used to estimate the molecular mass for each species (inset graph A).