从人红细胞膜自消化释放的一种唾液酸糖肽的鉴定。
Identification of a sialoglycopeptide released by self-digestion from human erythrocyte membranes.
作者信息
Brovelli A, Pallavicini G, Sinigaglia F, Balduini C L, Balduini C
出版信息
Biochem J. 1976 Aug 15;158(2):497-500. doi: 10.1042/bj1580497.
Abstract
Membranes from human O Rhesus-positive erythrocyte 'ghosts' were tested in vitro for their ability to digest their own glycoproteins. 'Ghost' membranes incubated in Tris/HCl buffer, pH 7.4, release a sialoglycopeptide, which contains glucosamine, galactosamine, galactose and mainly polar amino acids. Chemical composition, molecular size and aggregation properties suggest that this glycopeptide may be a fragment of glycophorin.
摘要
对来自人类O型恒河猴阳性红细胞“血影”的膜进行体外测试，以检测其消化自身糖蛋白的能力。在pH 7.4的Tris/HCl缓冲液中孵育的“血影”膜会释放出一种唾液酸糖肽，它含有氨基葡萄糖、半乳糖胺、半乳糖，且主要是极性氨基酸。其化学组成、分子大小和聚集特性表明，这种糖肽可能是血型糖蛋白的一个片段。
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