Figure 1.

Sequences of the Lhcb7 proteins of Arabidopsis (ara), poplar (pop), and rice (ory), indicating helices (A–D, shaded boxes), carotenoid-binding sites (car, white boxes), chlorophyll ligands (bold; according to Caffarri et al., 2004), and two possible positions for the cleavage site (cleave ?) of the transit peptide. The Lhcb7-specific motif that is predicted to be a transmembrane might be part of the mature Lhcb7 protein, which also contains the trimerization motif present in Lhcb1 to 3.