Structure and genetics of biosynthesis of the glycosyl phosphate-containing O-polysaccharide of Escherichia coli O160 Andrei V. Perepelov*, Xi Guo, Sof'ya N. Senchenkova, Alexander S. Shashkov, Yuriy A. Knirel Carbohydrate Research 2015 416:89-93 1.929