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.

Ex Input:
Cooperative effects for CYP2E1 differ between styrene and its metabolites.

Ex Output:
CYP2E1


Ex Input:
Characterization of the substrate mimic bound to engineered prostacyclin synthase in solution using high-resolution NMR spectroscopy and mutagenesis: implication of the molecular mechanism in biosynthesis of prostacyclin.

Ex Output:
prostacyclin synthase


Ex Input:
Desipramine treatment decreases 3H-nisoxetine binding and norepinephrine transporter mRNA in SK-N-SHSY5Y cells.

Ex Output:

norepinephrine transporter