RES
1r:r1
REP
REP1:7o(6+1)2d=-1--1
RES
2b:a-lman-HEX-1:5|6:d
3b:a-dglc-HEX-1:5
4s:n-acetyl
5b:a-dgal-HEX-1:5
6b:b-dglc-HEX-1:5
7b:a-dglc-HEX-1:5
LIN
1:2o(3+1)3d
2:3d(2+1)4n
3:3o(3+1)5d
4:5o(3+1)6d
5:5o(4+1)7d

• Jann B et al. The O18 antigens (lipopolysaccharides) of Escherichia coli. Structural characterization of the O18A, O18A1, O18B and O18B1-specific polysaccharides. Eur J Biochem. 1992 Nov 15;210:(1):241-8. doi: 10.1111/j.1432-1033.1992.tb17414.x. PMID: 1280216.