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]: Clinical assessment of norepinephrine transporter blockade through biochemical and pharmacological profiles.
[A]: norepinephrine transporter


[Q]: Captopril directly inhibits matrix metalloproteinase-2 activity in continuous ambulatory peritoneal dialysis therapy.
[A]: matrix metalloproteinase-2


[Q]: The selectivity of beta-adrenoceptor agonists at human beta1-, beta2- and beta3-adrenoceptors.
[A]:
beta-adrenoceptor