RES
1r:r1
REP
REP1:8o(2+1)2d=-1--1
RES
2b:b-dglc-HEX-1:5
3s:n-acetyl
4b:a-lglc-HEX-1:5|6:d
5s:n-acetyl
6b:a-dglc-HEX-1:5
7s:n-acetyl
8b:b-dglc-HEX-1:5
9s:acetyl
LIN
1:2d(2+1)3n
2:2o(3+1)4d
3:4d(2+1)5n
4:4o(3+1)6d
5:6d(2+1)7n
6:6o(6+1)8d
7:2o(6+1)9n

• Knirel YA et al. Structure and serology of O-antigens as the basis for classification of Proteus strains. Innate Immun. 2011 Feb;17:(1):70-96. doi: 10.1177/1753425909360668. PMID: 20305038.

• Cedzynski M et al. Structural and serological studies of the O-antigen of the bacterium Proteus vulgaris OX2 (serogroup O2) used in the Weil-Felix test. Biochemistry (Mosc). 1997 Jan;62:(1):15-20. PMID: 9113724.