Klebsiella oxytoca produces sucrose isomerase which catalyses the conversion of sucrose to isomaltulose, a new
generation of sugar. From the previous study, palI gene from Klebsiella oxytoca was succesfully isolated from sapodilla fruit
(Manilkara zapota). The full-length palI gene sequence of Klebsiella oxytoca was cloned in E. coli DH5α. The deduced amino
acid sequence shows 498 residues which includes conserved motif for sucrose isomerisation 325RLDRD329 and 97% identical to
palI gene from Klebsiella sp. LX3 (GenBank:AAK82938.1). This fragment was succesfullly ligated into the expression vector
pET-32b using overlap-extension PCR and cloned in Escherichia coli BL21 (DE3) pLysS. DNA sequencing result shows that
palI gene of Klebsiella oxytoca was inserted in-frame in pET-32b. This is the first report on cloning of palI gene from Klebsiella
oxytoca.