​In another Mediterranean crop, our group discovered novel genes providing salinity tolerance in olive international cultivars, e.g. 'Nabali' from Jordan and 'Picual' from Spain. Among them, OeUSP2 showed 6-8 fold increase in gene expression at 60 mM NaCl stress level. The predicated OeUSP2 three dimensional structure revealed unique ATP binding site utilizing residues from multiple helices and sheets.