Analysis of the 2-keto-3-deoxyoctonate (cas 1069-03-0) (KDO) region of lipopolysaccharides isolated from non-01 Vibrio cholerae 05R

Add time:07/27/2019    Source:sciencedirect.com

Phosphorylated 2-keto-deoxyoctonate (KDO) has been detected in the stronga-acid hydrolysates of lipopolysaccharides (LPS) of family Vibroonaceae including Vibrio cholerae. Structural analysis of LPS isolated from a rough mutant of non-01 V. cholerae 05 by dephosphorylation, periodate oxidation and methylation analysis revealed that the inner core region of the LPS molecule contains only one mole of KDO in contrast to enteric Gram-negative bacterial LPS, and that the phosphage group on the KDO molecule resides in the C4 position, while the site of binding of KDO to heptose, a constituent of the distal part of the inner core region, is the C5 position as in the enteric bacterial LPS.

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