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Fig. 2. Schematic representation of the GFP fusions used in transient expression
experiments. (a) The THI50-GFP construct corresponds to the N-terminus of THI1
(first 105 amino acids) containing the entire chloroplast transit peptide
followed by 50 amino acids of the mature THI1 (which includes the putative
mitochondrial presequence), with both 5' in-frame ATG codons. (b)
THI50
1-GFP, the first ATG was mutated to ATC whereas the second
in-frame start codon remained intact. (c) THI50
2-GFP, in which the
second ATG was converted to ATC. (d) THImet2-GFP starts at the second ATG
codon.