Phosphoethanolamine is located at the 6-position and not at the 7-position of the distal heptose residue in the lipopolysaccharide from Neisseria meningitidis

F St. Michael, E Vinogradov, C. Q Wenzel, J Li, J C Hoe and J. C Richards

Glycobiology 19 ( 12 ): 1436 - 1445 , 2009