Fig 6. The conserved Trio and the short core of H. pylori LPS are important for colonisation.

Currently known glycosyltransferases are assigned to the redefined complete structure of H. pylori LPS. The lipid A, the core-oligosaccharide domain and the Trio are proposed to be conserved and are important for host colonisation, whereas the Lewis antigen, heptan and glucan are variable and non-essential for colonisation.