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.

Arachidonic acid and nonsteroidal anti-inflammatory drugs induce conformational changes in the human prostaglandin endoperoxide H2 synthase-2 (cyclooxygenase-2).
human prostaglandin endoperoxide H2 synthase-2

Amino acid residues at the N- and C-termini are essential for the folding of active human butyrylcholinesterase polypeptide.
human butyrylcholinesterase

Binding of Diverse Environmental Chemicals with Human Cytochromes P450 2A13, 2A6, and 1B1 and Enzyme Inhibition.

Human Cytochromes P450 2A13, 2A6, and 1B1

