Fig. 1From: Comparison of lipopolysaccharides composition of two different strains of Helicobacter pylori SDS-PAGE analysis of LPS aqueous and phenol fractions. LPS was extracted from both the aqueous (aq) and phenol (ph) fractions of H. pylori SS1 and G27 strains. E. coli strain 055:B5 was used as standard LPS. A protein ladder was used for band sizing. SDS samples were determined using 20ul of LPS extract and then visualized with periodic silver stainBack to article page