Barnes M J, Gordon J L, MacIntyre D E
Biochem J. 1976 Dec 15;160(3):647-51. doi: 10.1042/bj1600647.
Human or chicken type III collagen dissolved in 0.1 M-acetic acid was much more potent than type I collagen at inducing platelet aggregation. After incubation in 0.38M-Na2HPO4 to promote fibrillogenesis, the platelet-aggregating activity of both collagen types increased, and type I was then virtually equiactive with type III. Preincubation in cell-free plasma increased the activity of chicken but not that of human collagen. The platelet-aggregating activity of type III collagen did not appear to depend on the integrity of the intrachain disulphide bonds.
溶解于0.1M乙酸中的人源或鸡源III型胶原蛋白在诱导血小板聚集方面比I型胶原蛋白有效得多。在0.38M磷酸氢二钠中孵育以促进纤维形成后,两种胶原蛋白的血小板聚集活性均增加,然后I型胶原蛋白与III型胶原蛋白的活性几乎相当。在无细胞血浆中预孵育可增加鸡源胶原蛋白的活性,但不会增加人源胶原蛋白的活性。III型胶原蛋白的血小板聚集活性似乎不依赖于链内二硫键的完整性。