protein protein interaction priority journal 264 nonhuman 244 article 218 controlled study 216 Animals 202 Humans 188 human 182 unclassified drug 164 protein expression 128 protein function 120 metabolism 110 signal transduction 106 animal cell 102 human cell 102 Protein Binding 92 mouse 88 Mice 84 Article 82 animal 76 protein domain 68 genetics 64 protein binding 64 protein localization 62 Cell Line 60 Signal Transduction 56 Molecular Sequence Data 52 chemistry 52 cell proliferation 50 Amino Acid Sequence 48