metabolism protein function controlled study 148 nonhuman 144 Animals 136 animal 134 human 122 priority journal 116 Humans 114 protein expression 112 unclassified drug 112 genetics 110 article 92 Article 82 signal transduction 72 animal cell 70 mouse 68 Mice 60 physiology 56 chemistry 54 protein analysis 50 human cell 48 Signal Transduction 44 animal experiment 44 in vitro study 42 messenger RNA 38 protein protein interaction 38 cytology 36 female 34 gene expression 34