Desulfovibrio desulfuricans PglB homolog possesses oligosaccharyltransferase activity with relaxed glycan specificity and distinct protein acceptor sequence requirements. Oligosaccharyltransferases (OTases) are responsible for the transfer of carbohydrates from lipid carriers to acceptor proteins and are present in all domains of life. In bacteria, the most studied member of this family is PglB f