“缺失”的典型豆科根瘤菌O抗原与豆科根瘤菌三叶草生物变种4S中的一种脂肪酰化甘油相连，该菌株也缺乏常见的四糖“核心”成分。
The "missing" typical Rhizobium leguminosarum O antigen is attached to a fatty acylated glycerol in R. leguminosarum bv. trifolii 4S, a strain that also lacks the usual tetrasaccharide "core" component.
作者信息
Cedergren R A, Wang Y, Hollingsworth R I
机构信息
Department of Biochemistry, Michigan State University, East Lansing 48824-1319, USA.
出版信息
J Bacteriol. 1996 Sep;178(18):5529-32. doi: 10.1128/jb.178.18.5529-5532.1996.
Abstract
Rhizobium leguminosarum bv. trifolii 4S has a lipopolysaccharide O antigen that lacks galactose and many of the typical glycosyl components found in related strains. Here, we show that it also lacks the typical core tetrasaccharide but synthesizes an alternative glycolipid that contains galactose and the typical O-antigen glycosyl components, suggesting that in this strain, the O antigen is transferred to an alternative lipid acceptor.
摘要
三叶草根瘤菌生物变种三叶型4S具有一种脂多糖O抗原，该抗原缺乏半乳糖以及相关菌株中常见的许多典型糖基成分。在此，我们表明它还缺乏典型的核心四糖，但能合成一种含有半乳糖和典型O抗原糖基成分的替代糖脂，这表明在该菌株中，O抗原被转移到了一种替代脂质受体上。
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