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]: We have produced the Ure2 protein to high yield in Escherichia coli from a synthetic gene .
[A]: Ure2 protein

[Q]: In the studies described in this report , we have identified two potential Ets binding sites , EBS1 and EBS2 , which are conserved in both the human and murine interleukin - 2 enhancers .
[A]: interleukin - 2

[Q]: The D443N substitution is an activating mutation that increases the activity of SCAP and renders it resistant to inhibition by 25 - hydroxycholesterol .
[A]:
D443N substitution