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A preliminary study of calcium binding to beta -casein using 31P nuclear magnetic resonance spectroscopy (NMR)



A preliminary study of calcium binding to beta -casein using 31P nuclear magnetic resonance spectroscopy (NMR)



XXI International Dairy Congress Vol 1, Book 2: 194-195



At pH 7, examination of bovine beta -casein with a JEOL FX 60 spectrophotometer at 24.15 MHz showed 4 peaks, accounting for 5 phosphoserine residues. Comparison with a beta -casein phosphopeptide (residues 1-25) showed that the low-field peak was SerP-35. In the phosphopeptide, all peaks moved to varying degrees to low field with increasing Ca addition.

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