title: The activation by Ca2+ of the ATPase of extracted muscle fibrilsith variation of ionic strength, pH and concentration of MgATP.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism / Q000494:pharmacology*; D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D003445:Crustacea; D003864:Depression, Chemical; D004987:Ethers / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D007094:Imides / Q000494:pharmacology; D066298:In Vitro Techniques; D008274:Magnesium / Q000494:pharmacology*; D009119:Muscle Contraction / Q000187:drug effects; D009210:Myofibrils / Q000187:drug effects / Q000201:enzymology*; D009994:Osmolar Concentration; D011817:Rabbits; D013045:Species Specificity; D013268:Stimulation, Chemical
chemical_list: D004987:Ethers; D007094:Imides; D000255:Adenosine Triphosphate; D000251:Adenosine Triphosphatases; D008274:Magnesium; D002118:Calcium