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, TS-, R- and S-Caseins as Fragments of ß-CaseinEastern Marketing and Nutrition Research Division, ARS, USDA, Philadelphia Pennsylvania 19118
ABSTRACT
From the results of amino acid analysis, molecular weight determinations, peptide mapping, and end-group analysis, it was believed that bovine
-, TS-, R- and S-caseins might be pieces of different sizes of the ²-casein molecule. Determination of the sequence of the first 10 to 15 amino acid residues at the n-terminal part of these proteins by a sequencer lends credence to the hypothesis because the sequences fit, at appropriate locations, the partial amino acid sequence of ß-casein worked out by Ribadeau Dumas, Grosclaude and Mercier.
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