title: [NMR study of fixation of sodium cations to bovine Gla protein].
abstract: Decalcified bovine Gla protein binds sodium cations on the three gamma-carboxylglutamic (Gla) residues. Sodium-23 nuclear magnetic resonance serves to determine the correlation time tau c of bound sodium ions. Its value (tau c = 2.5 ns) matches the reorientational correlation time of the protein (tau R = 2.6 ns).
mesh_terms: D015055:1-Carboxyglutamic Acid / Q000378:metabolism*; D000818:Animals; D002135:Calcium-Binding Proteins / Q000378:metabolism*; D002414:Cations, Monovalent; D002417:Cattle; D005971:Glutamates / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D015675:Osteocalcin; D012964:Sodium / Q000378:metabolism*
chemical_list: D002135:Calcium-Binding Proteins; D002414:Cations, Monovalent; D005971:Glutamates; D015675:Osteocalcin; D015055:1-Carboxyglutamic Acid; D012964:Sodium
vernacular_title: Etude par résonance magnétique nucléaire de la fixation des cations sodium à la protéine Gla bovine.