Dixon H B
Biochem J. 1975 Nov;151(2):271-4. doi: 10.1042/bj1510271.
Each Michaelis function that expresses the concentration of one of the species AL2, AL and A in terms of the concentration of free ligand (or its logarithm) is the product of two functions each of which represents the degree of ligation or de-ligation of a single site. These hypothetical sites have pK values of pK (SEE ARTICLE) where pK and alpha are defined by writing the two molecular pK values as pK +/- log2alpha. The factors are thus real if alpha larger than or equal to 1, i.e. if the binding of L by A is not positively co-operative. The dependence of [AL] on 1n[L] is compared with relations that represent other ligand-dependent equilibria.
每个根据游离配体浓度(或其对数)来表示物种AL2、AL和A之一浓度的米氏函数,都是两个函数的乘积,其中每个函数都代表单个位点的连接或去连接程度。这些假设位点的pK值为pK(见文章),其中pK和α是通过将两个分子pK值写为pK +/- log2α来定义的。因此,如果α大于或等于1,即如果A对L的结合不是正协同的,则这些因子是实数。将[AL]对ln[L]的依赖性与代表其他配体依赖性平衡的关系进行了比较。