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.

We conclude from these observations that the cTnC 3 ' Ile element is a composite enhancer that functions through the combined interactions of at least five regulatory elements and their cognate binding factors : three or four E - boxes , a MEF - 2 site , and a MEF - 3 site .
MEF - 2

The dopamine D1 dopamine receptor antagonist SCH 23390 dose dependently ( 7 . 5 - 30 micrograms / kg s . c . ) antagonized the stimulant locomotor effect on both drugs but did not prevent their antiimmobility effect on the behavioral despair test .
dopamine receptor

The RTI40 gene spans 35 kilobase pairs ; it contains 6 exons and at least 6 rat Identifier repetitive elements .
RTI40 gene