Animals priority journal nonhuman 116 promoter region 104 article 102 Mice 92 animal cell 88 controlled study 84 mouse 76 Promoter Regions (Genetics) 60 protein expression 50 Humans 44 Transcription, Genetic 44 animal 42 transcription regulation 42 animal experiment 40 metabolism 38 gene expression 36 human 36 signal transduction 36 unclassified drug 36 Signal Transduction 34 animal tissue 34 Cell Line 32 gene expression regulation 32 genetics 32 Animalia 30 Promoter Regions, Genetic 30 Gene Expression Regulation 28 Transfection 28