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Alignment of Arabidopsis IPP isomerase deduced amino acid sequences. AtIPI1 and AtIPI2 represent Arabidopsis IPP isomerase 1 and IPP isomerase 2, respectively. Identical amino acids are gray shadowed. Asterisks denote the first Met amino acids of the ORFs of long and short IPI transcripts, previously described by Phillips et al. (2008) and prevalent in the EST databases. Putative PTS1 peroxisomal-targeting motif {HKL} appears in bold black and is underlined.
