Tanner M J, Jenkins R E, Anstee D J, Clamp J R
Biochem J. 1976 Jun 1;155(3):701-3. doi: 10.1042/bj1550701.
The major penetrating membrane glycoprotein (band 3) was isolated from En(a-) and normal human erythrocytes. The two proteins differed only in carbohydrate composition. Band 3 from En(a-) erythrocytes contained greater amounts of galactose and N-acetyl-glucosamine. The loss of the sialoglycoprotein sialotetrasaccharides in the En(a-) cell is not compensated by the appearance of these units in band 3 of En(a-) erythrocytes.
主要穿透性膜糖蛋白(带3蛋白)从恩(a-)型和正常人红细胞中分离出来。这两种蛋白质仅在碳水化合物组成上有所不同。恩(a-)型红细胞的带3蛋白含有更多的半乳糖和N-乙酰葡糖胺。恩(a-)型细胞中唾液酸糖蛋白唾液酸四糖的缺失并未因恩(a-)型红细胞带3蛋白中这些单元的出现而得到补偿。