protein expression protein function nonhuman 264 priority journal 252 article 246 Animals 236 controlled study 232 human 198 Humans 174 unclassified drug 168 animal cell 130 metabolism 112 signal transduction 108 mouse 104 Mice 96 human cell 90 animal 86 protein localization 80 Female 78 animal experiment 74 protein protein interaction 74 Signal Transduction 72 protein analysis 72 female 66 genetics 66 protein binding 62 animal tissue 58 animal model 56 cell proliferation 56 messenger RNA 56