modulated expression造句

estrogen through binding specific estrogen department of physiology 7 receptor ( er ) in nucleus, functions like a nucleus transcription factor and modulates expression of some genes . it has been found that there exist two subtypes of er . there are a and p subunits which are different in their distribution, density and mediated action
雌激素调节神经系统功能往往通过雌激素受体（estrogenreceptor，er）蛋白介导。er属于类固醇受体超家族的核受体，具a、p两种亚型，此二者在各种组织分布及密度泅异。
It's difficult to find modulated expression in a sentence. 用modulated expression造句挺难的