title: Ca2+ requirement for Na+ stimulated Mg2+-ATPase in nuclei isolated from embryonic heart.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D001692:Biological Transport; D002118:Calcium / Q000378:metabolism / Q000494:pharmacology*; D002467:Cell Nucleus / Q000201:enzymology*; D002642:Chick Embryo; D006321:Heart / Q000196:embryology*; D008274:Magnesium / Q000378:metabolism*; D008433:Mathematics; D008566:Membranes; D009206:Myocardium / Q000166:cytology; D009698:Nucleoproteins / Q000096:biosynthesis; D012964:Sodium / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D009698:Nucleoproteins; D012964:Sodium; D000251:Adenosine Triphosphatases; D008274:Magnesium; D002118:Calcium