海洋性Enterobacterの生産する菌体外多糖の構造

奥谷 康一; 小林 裕士

doi:10.2331/suisan.57.1949

海洋性Enterobacterの生産する菌体外多糖の構造

奥谷康一, 小林裕士

著者情報

ジャーナルフリー

1991 年 57 巻 10 号 p. 1949-1956

DOI https://doi.org/10.2331/suisan.57.1949

詳細

発行日: 1991 年受付日: 1991/05/10 J-STAGE公開日: 2008/02/29 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/02/29 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : An extracellular, acidic polysaccharide was isolated from a marine strain of Enterobacter sp., designed MU-3, which was tentatively identified as E. agglomerans. The structure of this polysaccharide was determined by techniques of methylation, mild acid hydrolysis, periodate oxidation, Smith hydrolysis, and β-elimination. ¹H and ¹³C NMR spectroscopy was used to establish the nature of the anomeric linkages of the polysaccharide and of oligosaccharides derived through degradative procedures. The polysaccharide has a branched structure containing a backbone chain of →3)-β-_D-Galp (1→3)-α-_D-Galp (1→6)-β-_D-Glcp (1→, and a side chain of α-_D-Galp (1→4)-β-_D-GlcUAp (l→. The glucuronic acid residue in the side chain joins through C-4, to β-_D-galactose residue in the main chain. The terminal galactose in the side chain bears a pyruvic acetal substituent at positions C-4 and C-6.
Right : An extracellular, acidic polysaccharide was isolated from a marine strain of Enterobacter sp., designed MU-3, which was tentatively identified as E. agglomerans. The structure of this polysaccharide was determined by techniques of methylation, mild acid hydrolysis, periodate oxidation, Smith hydrolysis, and β-elimination. ¹H and ¹³C NMR spectroscopy was used to establish the nature of the anomeric linkages of the polysaccharide and of oligosaccharides derived through degradative procedures. The polysaccharide has a branched structure containing a backbone chain of →3)-β-D-Galp (1→3)-α-D-Galp (1→6)-β-D-Glcp (1→, and a side chain of α-D-Galp (1→4)-β-D-GlcUAp (l→. The glucuronic acid residue in the side chain joins through C-4, to β-D-galactose residue in the main chain. The terminal galactose in the side chain bears a pyruvic acetal substituent at positions C-4 and C-6.

訂正日: 2008/02/29 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

An extracellular, acidic polysaccharide was isolated from a marine strain of Enterobacter sp., designed MU-3, which was tentatively identified as E. agglomerans. The structure of this polysaccharide was determined by techniques of methylation, mild acid hydrolysis, periodate oxidation, Smith hydrolysis, and β-elimination. ¹H and ¹³C NMR spectroscopy was used to establish the nature of the anomeric linkages of the polysaccharide and of oligosaccharides derived through degradative procedures. The polysaccharide has a branched structure containing a backbone chain of →3)-β-D-Galp (1→3)-α-D-Galp (1→6)-β-D-Glcp (1→, and a side chain of α-D-Galp (1→4)-β-D-GlcUAp (l→. The glucuronic acid residue in the side chain joins through C-4, to β-D-galactose residue in the main chain. The terminal galactose in the side chain bears a pyruvic acetal substituent at positions C-4 and C-6.

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