TASK DEFINITION: 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.
PROBLEM:  Using beta 1 - AR - luciferase reporter recombinants , we have previously determined that important beta 1 - AR genetic elements controlling expression within the C6 glioma cell line are contained within the region - 396 to - 299 , relative to the translational start site .

SOLUTION: luciferase reporter

PROBLEM:  A 4 . 0 - kb Nlk message is also present during embryogenesis , detectable at day E10 .

SOLUTION: Nlk message

PROBLEM:  claR and car were not significantly expressed in mutants disrupted in the ccaR gene , a regulatory gene that controls positively clavulanic acid and cephamycin biosynthesis .

SOLUTION:
ccaR gene