• Calbindin-d9k: Vitamin D-dependent Calcium-Binding protein • Calcium loaded (Ca and Ln loaded also available on request) • Protein size: 8.5 kDa • Labeling: 13C, 15N, D • Concentration: 1 mM • H2O/D2O: 90/10, pH: 6.0 • Protein supplied in a 3 mm NMR tube sealed under Argon