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.
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Question: Practical asymmetric synthesis of aprepitant, a potent human NK-1 receptor antagonist, via a stereoselective Lewis acid-catalyzed trans acetalization reaction.

Answer: NK-1 receptor


Question: Multifunctional targets of dietary polyphenols in disease: a case for the chemokine network and energy metabolism.

Answer: chemokine


Question: Expression and 1,4-dihydropyridine-binding properties of brain L-type calcium channel isoforms.

Answer:
L-type calcium channel