nonhuman adenosine triphosphate 64 article 54 priority journal 50 Adenosine Triphosphate 36 Animals 34 enzyme activity 32 controlled study 30 metabolism 24 animal cell 20 unclassified drug 20 Kinetics 18 animal 16 chemistry 16 Article 14 Support, Non-U.S. Gov't 14 protein expression 12 rat 12 Animalia 10 animal experiment 10 animal tissue 10 calcium 10 dose response 10 enzyme regulation 10 genetics 10 protein protein interaction 10 signal transduction 10 Amino Acid Sequence 8 Calcium 8 Catalysis 8