The Arabidopsis thaliana (At) 2S albumin gene 3 (At2S3) has been clone
d in YEp13 as a 3.5-kb genomic fragment. To study its expression in Sa
ccharomyces cerevisiae, the accumulation in saturated cultures reached
about 0.032% of the yeast total protein, and the product was localize
d in vacuolar bodies within the cell, The 13-kDa protein was processed
to 9- and 4-kDa proteins, as obtained in transgenic tobacco plants.