priority journal protein expression protein function nonhuman 188 article 184 controlled study 170 Animals 158 human 130 unclassified drug 124 Humans 116 animal cell 98 mouse 78 Mice 72 signal transduction 70 Female 62 human cell 62 metabolism 62 protein localization 54 protein protein interaction 54 animal experiment 52 protein binding 50 animal 48 female 48 enzyme activity 46 genetics 46 male 44 protein analysis 44 Rats 42 Signal Transduction 42 cell proliferation 42