Polypeptides having transgalactosylating activity

A recombinant cell which has been genetically modified so as to be capable of expressing a polypeptide having transgalactosylating activity, wherein the polypeptide having transgalactosylating activity selected from the group consisting of:

• a. a polypeptide comprising an amino acid sequence having at least 66% sequence identity to the amino acid sequence of the mature polypeptide of SEQ ID NO:
• 1,
• b. a polypeptide comprising an amino acid sequence having at least 66% sequence identity to the amino acid sequence of the mature-polypeptide of SEQ ID NO:
• 2,
• c. a polypeptide encoded by a polynucleotide that hybridizes under at least low stringency conditions with
• i) the nucleic acid sequence comprised in SEQ ID NO:
• 10, encoding the mature polypeptide of SEQ ID NO:
• 1;
• ii) the cDNA sequence of i) or
• iii) the complementary strand of i) or ii);
• d. a polypeptide encoded by a polynucleotide that hybridizes under at least low stringency conditions with
• i) the nucleic acid sequence comprised in SEQ ID NO:
• 11, encoding the mature polypeptide of SEQ ID NO:
• 2;
• ii) the cDNA sequence of i) or
• iii) the complementary strand of i) or ii);
• e. a polypeptide comprising a conservative substitution, deletion or insertion of one or more amino acids of SEQ ID NO:
• 1, or
• f. a polypeptide comprising a conservative substitution, deletion or insertion of one or more amino acids of SEQ ID NO:
• 2,
• provided that the polypeptide of above items a, c, and e at the most has a length of 1806 amino acids and provided that the polypeptide of above items b, d, and f at the most has a length of 1767 amino acids.