Patent ID: 8409583

Claim:
A β-1,3-galactosyltransferase fusion polypeptide comprising i. a truncated CgtB polypeptide, wherein between 1 and 35 amino acids are removed from the C terminal end of the CgtB polypeptide, and ii. a maltose binding protein domain fused to the C-terminus of the CgtB polypeptide, wherein the β-1,3-galactosyltransferase polypeptide transfers a galactose moiety from a donor substrate to an acceptor substrate and wherein the truncated CgtB polypotide comprises an amino acid sequence with at least 90% identity to an amino acid sequence selected from the group consisting of SEQ ID NO:2, SEQ ID NO:4, SEQ ID NO:6, SEQ ID NO:8 and SEQ ID NO: 10.