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Structural analysis of the lipopolysaccharide from nontypeable Haemophilus influenzae strain 1003
Södertörn University, Avdelning Naturvetenskap.
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2002 (English)In: European Journal of Biochemistry, ISSN 0014-2956, E-ISSN 1432-1033, Vol. 269, no 3, 808-818 p.Article in journal (Refereed) Published
Abstract [en]

Structural analysis of the lipopolysaccharide (LPS) of nontypeable Haemophilus influenzae strain 1003 has been achieved by the application of high-field NMR techniques, ESI-MS. capillary electrophoresis coupled to ESI-MS. composition and linkage analyses on O-deacylated LPS and core oligosaccharide material. It was found that the LPS contains the common structural element of H. influenzae, L-alpha-D-Hepp-(1 --> 2)-[PEtn --> 6]-L-alpha-D-Hepp-(1 --> 3)-[beta-D-Glcp-(1 --> 4)]-L-alpha-D-Hepp-(1 --> 5)-[PP Etn --> 4]-alpha-Kdop-(2 --> 6)-Lipid A. in which the beta-D-Glcp residue is substituted by phosphocholine at O-6 and an acetyl group at O-4. A second acetyl group is located at O-3 of the distal heptose residue (HepIII). HepIII is chain elongated at O-2 by either a beta-D-Glcp residue (major), lactose or sialyllactose (minor, i.e. alpha-Neu5Ac-(2 --> 3)-beta-D-Galp-(1 --> 4)-beta-D-Glcp), where a third minor acetylation site was identified at the glucose residue. Disialylated species were also detected. In addition. a minor substitution of ester-linked glycine at HepIII and Kdo was observed.

Place, publisher, year, edition, pages
2002. Vol. 269, no 3, 808-818 p.
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Biochemistry and Molecular Biology
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URN: urn:nbn:se:sh:diva-15817DOI: 10.1046/j.0014-2956.2001.02707.xISI: 000174059100008PubMedID: 11846782OAI: oai:DiVA.org:sh-15817DiVA: diva2:508466
Available from: 2012-03-08 Created: 2012-03-07 Last updated: 2012-03-08Bibliographically approved

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Månsson, MartinSchweda, Elke K H
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