title: Magnesium nucleotide is stoichiometrically trapped at the active site of myosin and its active proteolytic fragments by thiol cross-linking reagents.
mesh_terms: D000244:Adenosine Diphosphate; D000249:Adenosine Monophosphate; D000251:Adenosine Triphosphatases / Q000378:metabolism; D000255:Adenosine Triphosphate / Q000031:analogs & derivatives; D000266:Adenylyl Imidodiphosphate; D000818:Animals; D001665:Binding Sites; D002413:Cations, Divalent; D003432:Cross-Linking Reagents; D007700:Kinetics; D008274:Magnesium; D009132:Muscles / Q000201:enzymology; D009218:Myosins / Q000378:metabolism; D010446:Peptide Fragments; D011485:Protein Binding; D011817:Rabbits
chemical_list: D002413:Cations, Divalent; D003432:Cross-Linking Reagents; D010446:Peptide Fragments; D000266:Adenylyl Imidodiphosphate; D000249:Adenosine Monophosphate; D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; D000251:Adenosine Triphosphatases; D009218:Myosins; D008274:Magnesium