当第一个逐步变化的跨膜受体酪氨酸激酶通过一个受体被另外一个受体磷酸化而轻易实现临时激活时，我怀疑这种作用方式。

I suspect the way this worked when the first transmembrane receptors tyrosine kinase evolved was simply to make activation contingent on phosphorylation of one receptor by the other.

youdao

当第一个逐步变化的跨膜受体酪氨酸激酶通过一个受体被另外一个受体磷酸化而轻易实现临时激活时，我怀疑这种作用方式。

I suspect the way this worked when the first transmembrane receptors tyrosine kinase evolved was simply to make activation contingent on phosphorylation of one receptor by the other.

youdao