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]: 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 .
[EX A]: murine MMR mRNA

[EX Q]: Mapping of the region in KAP - 1 required for HP1 interaction showed that amino acid substitutions which abolish HP1 binding in vitro reduce KAP - 1 mediated repression in vivo .
[EX A]: KAP - 1

[EX Q]: The distinct spatial pattern of expression , and unusual amino acid sequence in its DNA binding domain , may indicate a particular role for DTEF - 1 in cell - specific gene regulation .
[EX A]:
DTEF - 1