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:
A fluorescence resonance energy transfer-based M2 muscarinic receptor sensor reveals rapid kinetics of allosteric modulation.
answer:
M2 muscarinic receptor


question:
Mercury induces the expression of cyclooxygenase-2 and inducible nitric oxide synthase.
answer:
cyclooxygenase-2


question:
Role of oestrogen receptors on the modulation of NADPH-diaphorase-positive cell number in supraoptic and paraventricular nuclei of ovariectomised female rats.
answer:

oestrogen receptors