Comparison of deduced amino acid sequence of AcN2
and AcT1 from onion with onion 6G-FFT, chicory 1-SST, and acid
invertase of tulip. AcSST, Deduced amino acid sequence
of AcN2 (accession no. AJ006066); AcInv, deduced amino
acid sequence of AcT1 (accession no. AJ007067);
Ac6G-FFT, from onion (Vijn et al., 1997; accession no.
Y07838); CiSST, 1-SST from chicory (de Halleux and Van
Cutsem, 1997; accession no. U81520); TgInv, vacuolar
invertase from tulip (accession no. X95651). The N-terminal end of the
mature 1-SST protein of chicory is indicated by an arrow. Identical
amino acids are shaded. The putative glycosylation sites in
AcSST and AcInv are underlined.