reporter gene article 88 priority journal 80 nonhuman 78 Animals 66 controlled study 64 Genes, Reporter 54 Humans 54 human 54 metabolism 54 promoter region 44 gene expression 42 human cell 40 Mice 38 gene expression regulation 36 animal cell 34 unclassified drug 34 genetics 32 signal transduction 32 animal 30 mouse 30 animal experiment 28 Article 26 Cell Line 26 Molecular Sequence Data 26 Western blotting 26 protein expression 26 genetic transfection 24 messenger RNA 24 Mammalia 22