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.

Q:  Expression of oestrogen and progesterone receptors by mast cells alone , but not lymphocytes , macrophages or other immune cells in human upper airways .

A: progesterone receptors
****
Q:  These data suggest that the IL - 2 and CD3 signaling pathways provide a necessary and co - operative stimulus promoting phosphorylation of CREB following receptor cross - linking .

A: IL - 2
****
Q:  The capacity and the affinity of dexamethasone for glucocorticoid receptors ranged in the normal values .

A:
glucocorticoid receptors
****