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.

[EX Q]: Sunitinib, sorafenib and mTOR inhibitors in renal cancer.
[EX A]: mTOR

[EX Q]: Current and future prospects for anticoagulant therapy: inhibitors of factor Xa and factor IIa.
[EX A]: factor Xa

[EX Q]: The role of extranuclear signaling actions of progesterone receptor in mediating progesterone regulation of gene expression and the cell cycle.
[EX A]:
progesterone receptor