Nucleic acids encoding sucrose-binding proteins

摘要

A cDNA encoding a plant sucrose binding protein (SBP) is provided, together with modified SBPs having enhanced sucrose uptake activity in a yeast assay system. Nucleic acid vectors, transgenic cell and transgenic plants having modified sucrose uptake activity are also provided. The invention also relates to promoter sequences useful for controlling expression of transgenes in plants, including SBP transgenes.