instruction:
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.
question:
Loss of beta-adrenoceptor response in myocytes overexpressing the Na+/Ca(2+)-exchanger.
answer:
beta-adrenoceptor


question:
Protein kinase C potentiates homologous desensitization of the beta2-adrenoceptor in bovine tracheal smooth muscle.
answer:
beta2-adrenoceptor


question:
Selective cyclooxygenase-2 (COX-2) inhibitors and breast cancer risk.
answer:

cyclooxygenase-2