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. 2011 Feb 22;108(10):4087–4092. doi: 10.1073/pnas.1100782108

Fig. 2.

Fig. 2.

Characterization of B. bronchiseptica RBA2b LPS hydrolyzate. (A) Bio-Gel P-10 gel filtration of B. bronchiseptica RBA2b OS with different number of band A nonreducing end trisaccharide repeats. (B) SDS/PAGE of B. bronchiseptica RBA2b LPS. (C and D) ESI-MS spectrum of the separated fractions (C) and their chemical structures (D). Each fraction differs by 661 Da (one repeat). Each OS is represented by several peaks due to incomplete methylation of FucNAc4N (14 Da) and/or phosphate (80 Da). F1, four and five repeats; F2, three repeats; F2, two repeats; F4, one repeat.