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 Q]: Neuronal expression of glucosylceramide synthase in central nervous system regulates body weight and energy homeostasis.
[EX A]: glucosylceramide synthase

[EX Q]: Reduction of oral ethanol self-administration in rats by monoamine oxidase inhibitors.
[EX A]: monoamine oxidase

[EX Q]: Overview of monoclonal antibodies and small molecules targeting the epidermal growth factor receptor pathway in colorectal cancer.
[EX A]:
epidermal growth factor receptor