Additional file 1.

Proposed composition of OdA LOS from H. somni strains 2336 and 129Pt grown as a biofilm, as planktonic cells, or on blood agar plates by negative-ion-ES-MS. Data of the observed ions (m/z), observed and calculated molecular mass (in daltons), and proposed composition of O-deacylated lipooligosaccharides from H. somni strains 2336, which can be sialylated, and 129Pt, which is cannot be sialylated, grown with and without sialic acid as a biofilm, planktonically, and on blood agar.

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Sandal et al. BMC Microbiology 2011 11:186   doi:10.1186/1471-2180-11-186