Polypeptides having transgalactosylating activity
The present invention relates to polypeptides, specifically polypeptides having transgalactosylating activity and nucleic acids encoding these, and their uses in e.g. dairy product.
1. A polypeptide having transgalactosylating activity
comprising an amino acid sequence having at least 96.5% sequence identity with SEQ ID NO: 3, wherein said polypeptide consists of at most 1300 amino acid residues.
2. The polypeptide of claim 1 which consists of the amino acid sequence of SEQ ID NO: 3.
3. The polypeptide of claim 1 , wherein said polypeptide has a ratio of transgalactosylating activity: β-galactosidase activity of at least 1.5.
4. A nucleic acid capable of encoding a polypeptide according to claim 1 .
5. An expression vector comprising a nucleic acid according to claim 4 .
6. A cell capable of expressing a polypeptide according to claim 5 .
7. A method of expressing a polypeptide, the method comprising obtaining a cell according claim 6 and expressing the polypeptide from the cell, and optionally purifying the polypeptide.
8. A food or dairy composition comprising a polypeptide as defined in claim 1 .