动物及人的性细胞、多种体细胞和恶性转化细胞表面都有刀豆素A(ConA)受体,而数量及亲和常数各不相同。细胞转化后受体数量及亲和常数均可发生变化,可作为肿瘤细胞的一个特征。受体定量多用同位素放射受体法,采用Scatchard作图估测亲和常数。邵幼吾等首用荧光定量法研究小鼠胸腺细胞花生凝集素受体,认为该法重 Animal and human sex cells, a variety of somatic cells and malignant transformed cells have concanavalin A (ConA) receptors, and the number and affinity constants vary. After transformation, the number of receptors and the affinity constants can change, which can be used as a feature of tumor cells. Quantitative receptor multi-isotope radioimmunoassay, using Scatchard mapping to determine the affinity constant. Shao Youwu and other first quantitative fluorescent method to study mouse thymus peanut lectin receptor, that the method of weight