instruction:
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.
question:
 To assess the interaction between these atypical steroids and the glucocorticoid receptor , we examined the binding of [ 3H ] CVZ to cytosol from glucocorticoid - sensitive and - resistant variants of the human leukemic cell line CEM C7 .
answer:
glucocorticoid receptor


question:
 Stimulation of T lymphocytes results in a rapid increase in intracellular calcium concentration ( [ Ca2 + ] i ) that parallels the activation of Ca2 + - calmodulin - dependent protein kinase IV ( CaMKIV ) , a nuclear enzyme that can phosphorylate and activate the cyclic adenosine monophosphate ( cAMP ) response element - binding protein ( CREB ) .
answer:
nuclear enzyme


question:
 No evidence for the existence of a specific progesterone receptor in human mononuclear leukocytes was obtained as judged by the results of competition experiments where a progesterone receptor - specific ligand [ 3H ] Org 2058 was used .
answer:

progesterone receptor