Patent ID: 7977082

Claim:
An isolated polypeptide comprising an amino acid sequence selected from the group consisting of the amino acid sequence set forth in SEQ ID NO: 8 or 10, and an amino acid sequence that is encoded by a first nucleotide sequence that hybridizes to a second nucleotide sequence encoding SEQ ID NO: 8 or 10 under high stringency conditions, wherein the conditions comprise hybridization at 65° C. in 1% BSA, 1 mM EDTA, 0.5M NaHPO 4 (pH 7.2), 7% SDS, and washing at 68° C. in 0.2×SSC, 0.1% SDS, wherein the amino acid sequence has one or more of the following features: (a) catalyses the conversion of sucrose into isomaltulose and concomitantly produces trehalulose at a yield of less than 5% of the yield of isomaltulose; or (b) catalyses the conversion of sucrose into isomaltulose with a K m of less than about 50 mM and with a V max of at least about 400 pmoles isomaltulose/mg protein/min; or (c) catalyses the conversion of sucrose into isomaltulose but not the hydrolysis of isomaltulose.