Structure of the capsular polysaccharide from Alteromonas nigrifaciens IAM 13010T containing 2-acetamido-2,6-dideoxy-L-talose and 3-deoxy-D-manno-octulosonic acid.

作者信息

Gorshkova R P, Nazarenko E L, Zubkov V A, Shashkov A S, Knirel Y A, Paramonov N A, Meshkov S V, Ivanova E P

机构信息

Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russian Federation.

出版信息

Carbohydr Res. 1997 Mar 26;299(1-2):69-76. doi: 10.1016/s0008-6215(96)00339-4.

DOI:10.1016/s0008-6215(96)00339-4

PMID:9129296

Abstract

A capsular polysaccharide was obtained from Alteromonas nigrifaciens IAM 13010T by saline extraction. On the basis of 1H and 13C NMR spectroscopy, including one-dimensional (1D) NOE spectroscopy, 2D rotating-frame NOE spectroscopy (ROESY), and 1H-detected heteronuclear 1H,13C multiple-quantum coherence (HMQC), it was concluded that the polysaccharide contained inter alia an acidic sugar, 3-deoxy-D-manno-octulosonic acid (Kdo), and a rare amino sugar, 2-acetamido-2,6-dideoxy-L-talose (L-6dTalNAc, N-acetylpneumosamine), and has a pentasaccharide repeating unit of the following structure: [equation: see text]

摘要