Animals 96 Mice protein expression protein function 96 nonhuman 84 controlled study 82 mouse 82 article 80 animal cell 72 priority journal 72 unclassified drug 56 animal experiment 48 Humans 46 human 46 animal 44 animal model 38 metabolism 38 Female 36 animal tissue 36 genetics 34 female 32 human cell 30 Mice, Inbred C57BL 26 protein localization 26 protein protein interaction 26 Mice, Inbred BALB C 24 enzyme activity 24 in vivo study 24 male 24 signal transduction 24