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.

[Q]: Enzymatic and biochemical properties of a novel human serine dehydratase isoform.
[A]: human serine dehydratase


[Q]: The dextromethorphan analog dimemorfan attenuates kainate-induced seizures via sigma1 receptor activation: comparison with the effects of dextromethorphan.
[A]: sigma1 receptor


[Q]: Thalidomide prevents alcoholic liver injury in rats through suppression of Kupffer cell sensitization and TNF-alpha production.
[A]:
TNF-alpha