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Glycine is a common...
Glycine is a common substituent of the inner core in Haemophilus influenzae lipopolysaccharide
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Li, J J (author)
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Bauer, S H J (author)
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- Månsson, Martin (author)
- Södertörns högskola,Avdelning Naturvetenskap
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Moxon, E R (author)
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Richards, J C (author)
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- Schweda, Elke K H (author)
- Karolinska Institutet,Södertörns högskola,Avdelning Naturvetenskap
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(creator_code:org_t)
- Oxford University Press (OUP), 2001
- 2001
- English.
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In: Glycobiology. - : Oxford University Press (OUP). - 0959-6658 .- 1460-2423. ; 11:12, s. 1009-1015
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
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- A survey of both typeable and nontypeable strainsof Haemophilus influenzae indicated that they contain glycine (Gly) in their lipopolysaccharide (LPS). Significant amounts (30-250 pmol Gly/mug LPS) were determined by high-performance anion-exchange chromatography using pulsed amperometric detection after treatment of the LPS with mild alkali. Oligosaccharides obtained from LPS after mild acid hydrolysis and gel filtration chromatography were investigated by electrospray ionization mass spectrometry (ESI-MS) and capillary electrophoresis (CE) ESI-MS. In all cases, molecular ions corresponding to the major glycoforms were identified and were accompanied by ions differing by 57 Da, thus indicating the presence of glycine. The position of glycine in these glycoforms was determined by CE-ESI-MS/MS analyses. It was found that, depending on strain, glycine can substitute each of the heptoses of the inner-core element, L-alpha-D-Hepp-(1-->2)-[PEtn-->6]-L-alpha-D-Hepp-(1-->3)-L-alpha-D-Hepp- (1-->5)-alpha-Kdo of H. influenzae LPS as well as Kdo. In some strains, mixtures of monosubstituted Gly-containing glycoforms having different substitution patterns were identified.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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