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]:  An additional stimulation of D1 receptors by giving SKF38393 30 min later produced an almost continuous pattern of jaw openings but less closure movements from the rest position , and the openings were accompanied by frequent tongue protrusions .
[A]: D1 receptors


[Q]:  Characterization of a unique protein component of yeast RNase MRP : an RNA - binding protein with a zinc - cluster domain .
[A]: yeast RNase MRP


[Q]:  Inhibition of DNA topoisomerase II alpha gene expression by the p53 tumor suppressor .
[A]:
p53 tumor suppressor