Huang L, Lin Y, Tian G, Ji G
Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai 200032.
Yao Xue Xue Bao. 1998 Jul;33(7):512-6.
Three glycoconjugates, LbGp3, LbGp4 and LbGp5, were isolated from the fruit of Lycium barbarum L. Molecular weights of LbGp3, LbGp4 and LbGp5 were 9.25 x 10(4), 21.48 x 10(4) and 2.37 x 10(4), respectively. Carbohydrate contents of LbGp3, LbGP4 and LbGp5 were 93.6%, 85.6%, 8.6%, respectively. LbGp3 was composed of Ara and Gal in a molar ratio of 1:1. LbGp4 was composed of Ara, Gal, Rha and Glc in a molar ratio of 1.5:2.5:0.43:0.23. LbGp5 was composed of Rha, Ara, Xyl, Gal, Man and Glc in a molar ratio of 0.33:0.52:0.42:0.94:0.85:1. Elemental analysis of N contents: LbGp3 0.83%, LbGp4 1.72%, LbGp5 9.58%. The linkage between the glycan and protein may be of O-linkage in LbGp4.
从宁夏枸杞果实中分离出三种糖缀合物，即枸杞糖蛋白3（LbGp3）、枸杞糖蛋白4（LbGp4）和枸杞糖蛋白5（LbGp5）。LbGp3、LbGp4和LbGp5的分子量分别为9.25×10⁴、21.48×10⁴和2.37×10⁴。LbGp3、LbGp4和LbGp5的碳水化合物含量分别为93.6%、85.6%、8.6%。LbGp3由阿拉伯糖（Ara）和半乳糖（Gal）以1:1的摩尔比组成。LbGp4由阿拉伯糖、半乳糖、鼠李糖（Rha）和葡萄糖（Glc）以1.5:2.5:0.43:0.23的摩尔比组成。LbGp5由鼠李糖、阿拉伯糖、木糖（Xyl）、半乳糖、甘露糖（Man）和葡萄糖以0.33:0.52:0.42:0.94:0.85:1的摩尔比组成。氮含量的元素分析结果为：LbGp3含0.83%，LbGp4含1.72%，LbGp5含9.58%。在LbGp4中，聚糖与蛋白质之间的连接可能为O-连接。
