N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russian Federation.
School of Biology, M.V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation.
Carbohydr Res. 2021 Jan;499:108233. doi: 10.1016/j.carres.2021.108233. Epub 2021 Jan 8.
The cell wall of Rathayibacter caricis VKM Ac-1799 (family Microbacteriaceae, class Actinobacteria) was found to contain both neutral and acidic glycopolymers. The first one is D-rhamnopyranan with main chain →2)-α-D-Rhap-(1 → 3)-α-D-Rhap-(1→, where a part of 2-substituted residues bears as a side-chain at position 3 α-D-Manp residues or disaccharides α-D-Araf-(1→2)-α-D-Manp-(1 → . The second polymer is a teichuronic acid with a branched repeating units composed of seven monosaccharides →4)-α-[β-D-Manp-(1 → 3)]-D-Glcp-(1 → 4)-β-D-GlcpA-(1 → 2)-β-[4,6Pyr]-D-Manp-(1 → 4)-β-L-Rhap-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Glcp-(1 → . The structures of the polymers were determined by chemical and NMR spectroscopic methods.
雷达标本杆菌（Rathayibacter caricis）VKM Ac-1799 的细胞壁含有中性和酸性糖聚合物。第一个是 D-鼠李吡喃聚糖，主链为→2）-α-D-Rhap-(1 → 3)-α-D-Rhap-(1→，其中一部分 2-取代残基在 3 位带有侧链的α-D-Manp 残基或二糖α-D-Araf-(1→2)-α-D-Manp-(1 →。第二个聚合物是一种枝状重复单元由七个单糖组成的泰勒糖醛酸→4）-α-[β-D-Manp-(1 → 3)]-D-Glcp-(1 → 4)-β-D-GlcpA-(1 → 2)-β-[4,6Pyr]-D-Manp-(1 → 4)-β-L-Rhap-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Glcp-(1 →。聚合物的结构通过化学和 NMR 光谱方法确定。
