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肽聚糖属于几糖
更新时间: 2020-09-18 00:00:00  

肽聚糖是由双糖单位、四肽尾与肽桥聚合而成的多层网状大分子结构肽聚糖合成;

N乙酰葡萄糖胺和N乙酰胞壁酸交替连接的杂多糖与不同组成的肽交叉连接形成的大分子。是存在于革兰氏阳性和阴性细菌细胞壁中的一种复合糖类。主链是1,4糖苷键连接的N乙酰氨基葡糖和N乙酰胞壁酸交替的杂多糖。在N乙酰胞壁酸上接有肽链,不同糖链上的肽链交联后形成稳定的水不溶产物。

关键词: 聚糖 属于

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