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正常生理条件下,红细胞内Ca~(2+)浓度为10~(-6)mol/L,而血液中的Ca~(2+)浓度则约10~(-3)mol/L,因此在红细胞膜两侧存在着约1000倍的跨膜Ca~(2+)梯度.我们曾报道过跨膜Ca~(2+)梯度对通过膜脂调节质膜腺苷酸环化酶、肌质网膜Ca~(2+)-ATP酶构象和活力的重要性.红细胞骨架(Cell skeleton)是维持红细胞形态和功能的基础.它由两个结构单元组成——细胞膜和膜骨架(Membraneskeleton).
Under normal physiological conditions, Ca 2+ concentration in erythrocytes is about 10 -6 mol / L and Ca 2+ concentration in blood is about 10 -3 mol / L. Therefore, There is a ~ 1000-fold transmembrane Ca ~ (2+) gradient on both sides of the erythrocyte membrane.We have reported that the transmembrane Ca ~ (2+) gradient regulates the expression of plasma membrane adenylate cyclase, sarcoplasmic reticulum The importance of the conformational and viability of membrane Ca ~ (2 +) - ATPase.Cell skeleton is the basis for maintaining the morphology and function of erythrocytes.It consists of two structural units - Membranes and Membraneskeleton.