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: In vitro metabolism of the 5-hydroxytryptamine1B receptor antagonist elzasonan.

A: 5-hydroxytryptamine1B
****
Q: Sunitinib, sorafenib and mTOR inhibitors in renal cancer.

A: mTOR
****
Q: High-mannose-type glycan modifications of dihydrofolate reductase using glycan-methotrexate conjugates.

A:
dihydrofolate reductase
****