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J Dent Res 29(6): 815-816, 1950
© 1950 International and American Associations for Dental Research
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THE BASIC AMINO ACID CONTENT OF ENAMEL PROTEIN

F. L. LOSEE 1, B. A. NEIDIG 1, and W. C. HESS 1

1 Department of Biological Chemistry, Georgetown University Medical and Dental Schools, Washington, D. C.

The histidine, lysine, and arginine content of enamel protein prepared from noncarious fully erupted permanent first and second molars has been determined by paper chromatography, chromatographic separation upon a mixture of Lloyd's reagent and Super-Cel, and by microbiologic assay. The mol ratios of these three amino acids are 1 :3 :9, in fairly close agreement with the ratios of 1 :4 :12 suggested for an eukeratin.

Submitted on June 24, 1950






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