Collman J P, Brauman J I, Rose E, Suslick K S
Proc Natl Acad Sci U S A. 1978 Mar;75(3):1052-5. doi: 10.1073/pnas.75.3.1052.
The solid-gas O2 binding equilibrium has been studied for for ferrous "picket fence" porphyrinates with sterically hindered axial imidazoles. Such systems show significant cooperativity in their binding of O2: at low O2 pressures a low O2 affinity form exists, and at high O2 pressures a higher O2 affinity form develops. Direct analogies are drawn to the cooperativity shown in O2 binding by hemoglobin. These model systems mimic hemoglobin quantitatively.
对于带有空间位阻轴向咪唑的亚铁“栅栏”卟啉配合物,研究了其固-气氧气结合平衡。这类体系在氧气结合过程中表现出显著的协同性:在低氧压力下存在低氧亲和力形式,而在高氧压力下会形成更高氧亲和力形式。文中直接将其与血红蛋白在氧气结合过程中表现出的协同性进行了类比。这些模型体系在定量方面模拟了血红蛋白。