instruction:
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.
question:
 Sequence and deletion analysis of the recombination enhancement gene ( ref ) of bacteriophage P1 : evidence for promoter - operator and attenuator - antiterminator control .
answer:
recombination enhancement gene


question:
 We therefore investigated whether the promoter activity of the mouse TRH gene is directly regulated by RA using a transient transfection assay into CV - 1 cells .
answer:
mouse TRH gene


question:
 This demonstrates the presence of a PKC - dependent pathway which functions independently from Lck in MAP kinase activation .
answer:

MAP kinase