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MALDI-TOF mass spectrum (negative ion mode) of the LPS of A. veronii bv. sobria strain K557. The notations indicate: 28 u—differences in (CH2)2 in the fatty acid chain length; 44 u—loss of CO2; 80 u—loss of phosphate; LpAhexa - hexaacylated lipid A; Core OS—core oligosaccharide.
