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]:  The clr1 locus regulates the expression of the cryptic mating - type loci of fission yeast .
[A]: clr1 locus


[Q]:  Steady - state levels of murine MMR mRNA were measured in the macrophage cell line J774E , which is known to express the protein at the cell surface .
[A]: murine MMR mRNA


[Q]:  However , the molecular mechanisms by which specific cis - and trans - acting factors control activity of the prodynorphin promoter are not as clearly defined .
[A]:
prodynorphin promoter