2.5.1.84 chloroplast - 9507 759275 2.5.1.84 chloroplast plastidic isozyme OsSPS2 9507 739259 2.5.1.84 microsome - - 637967 2.5.1.84 mitochondrion mitchondrial isozyme OsSPS1 5739 739259 2.5.1.84 plastid - 9536 704891, 759275 2.5.1.84 plastid isoform SPS2 shows a putative transit peptide of 57 amino acids for plastidal localization at the N-terminus 9536 704891