In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 Tumors binding more than 5 fmol / mg cytosol protein were classified as ER - positive .
cytosol protein

 No clear correlation could be established between the level of glucocorticoid receptor and the in vitro action of steroids in normal and neoplastic lymphoid tissue .
glucocorticoid receptor

 Immunochemical differences between glucocorticoid receptors from corticoid - sensitive and - resistant malignant lymphocytes .

glucocorticoid receptors