Patent ID: 6884611

Claim:
An isolated or purified protein with sucrose isomerase activity, wherein the protein is recombinant and is encoded by a DNA sequence comprising (a) A nucleotide sequence selected from SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:9, SEQ ID NO:11, SEQ ID NO:13, and any of these sequences without the signal peptide-coding region; (b) a nucleotide sequence corresponding to the sequences from (a) within the scope of the degeneracy of the genetic code, or (c) a nucleotide sequence that hybridizes with a sequence from (a), (b), or both (a) and (b), wherein a positive hybridization signal is still observed after washing with a stringency of at least 1×SSC and 0.1% SDS at 55° C. for one hour; and wherein the protein has sucrose isomerase activity of at least 30 units/mg.