Chemical studies of isolated myofibrils in vitro.  I.  The role of magnesium, calcium and nitrogen-phosphorus partition in contraction induced with adenosinetriphosphate.
D000255:Adenosine Triphosphate / Q000494:pharmacology*; D002118:Calcium / Q000494:pharmacology*; D066298:In Vitro Techniques; D008274:Magnesium / Q000494:pharmacology*; D009132:Muscles / Q000502:physiology*; D009210:Myofibrils; D009584:Nitrogen / Q000494:pharmacology*; D010758:Phosphorus / Q000494:pharmacology*
D010758:Phosphorus; D000255:Adenosine Triphosphate; D008274:Magnesium; D009584:Nitrogen; D002118:Calcium
ADENYLPYROPHOSPHATE/effects; CALCIUM/effects; MAGNESIUM/effects; MUSCLES/physiology; NITROGEN/effects; PHOSPHORUS/effects