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Schematic representation of constructs used in this study. Numbers below each construct indicate the amino acid residue numbers, with the first amino acid of the precursor protein as 1. Proteins from Arabidopsis are specified with “at.” All others are from pea. D1 and D2, The ATPase I and ATPase II domains, respectively; N, the N domain; pr, precursor form; S, the spacer region between the D1 and D2 domains; TP, transit peptide.
