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Structural studies ...
Structural studies of a polysaccharide from Vibrio parahaemolyticus strain AN-16000
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- Fontana, Carolina (författare)
- Stockholms universitet,Institutionen för organisk kemi
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- Zaccheus, Mona V. (författare)
- Stockholms universitet,Institutionen för organisk kemi
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- Weintraub, Andrej (författare)
- Karolinska Institutet
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Ansaruzzaman, Mohammad (författare)
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- Widmalm, Göran (författare)
- Stockholms universitet,Institutionen för organisk kemi
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(creator_code:org_t)
- Elsevier, 2016
- 2016
- Engelska.
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Ingår i: Carbohydrate Research. - : Elsevier. - 0008-6215 .- 1873-426X. ; 432, s. 41-49
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http://su.diva-porta...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The structure of a polysaccharide from Vibrio parahaemolyticus strain AN-16000 has been investigated. The sugar and absolute configuration analysis revealed D-Glc, D-GalN, D-QuiN and L-FucN as major components. The PS was subjected to dephosphorylation with aqueous 40% HF to obtain an oligosaccharide that was analyzed by H-1 and C-13 NMR spectroscopy. The HR-MS spectrum of the oligosaccharide revealed a pentasaccharide composed of two Glc residues, one QuiNAc and one GalNAc, one FucNAc, as well as a glycerol moiety. The structure of the PS was determined using H-1, C-13, N-15 and P-31 NMR spectroscopy; inter-residue correlations were identified by H-1, C-13-heteronuclear multiple-bond correlation, H-1, H-1-NOESY and H-1, P-31-hetero-TOCSY experiments. The PS backbone has the following teichoic acid-like structure: -> 3)-D-Gro-(1-P-6)-beta-D-Glcp-(1 -> 4)-alpha-L-FucpNAc-(1 -> 3)-beta-D-QuipNAc-(1 -> with a side-chain consisting of alpha-D-Glcp-(1 -> 6)-alpha-D-GalpNAc-(1 -> linked to the O3 position of the FucNAc residue.
Ämnesord
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Nyckelord
- Vibrio parahemolyticus
- NMR
- Dephosphorylation
- Glycerol-1-phosphate
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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