membrane protein article 82 metabolism 54 Membrane Proteins 52 controlled study 48 priority journal 46 Animals 42 nonhuman 42 human 40 Humans 38 unclassified drug 36 Membrane Glycoproteins 30 animal 30 chemistry 30 genetics 28 human cell 26 Article 18 Trypanosoma cruzi 18 signal transduction 18 Glycoproteins 16 cell membrane 16 enzymology 16 glycoprotein 16 protein expression 16 Cell Membrane 14 mutation 14 Female 12 Trypanosoma 12 cell surface 12 drug effect 12