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Regions of the 1H,13C HMBC spectrum of the O-PS of A. veronii bv. sobria strain K557. The maps show heteronuclear correlations for (a) anomeric protons, and (b) H-6 protons. Interresidue correlations between anomeric protons and carbons at the glycosidic linkages are underlined. Some other H/C correlations are depicted as well. Capital letters and Arabic numerals refer to protons or carbons in the sugar residues denoted as shown in Table 3.
