Amino Acid Composition of Dentin Protein.

Abstract

Protein prepd. from the dentin removed from the crowns of non-carious, fully erupted, permanent, 1st and 2d human molars was analyzed for lysine, arginine, histidine, hydroxypro-line, phenylalanine, methionine, cystine, tryptophane, serine, threonine, glycine, alanine, and tyrosine. The amts. found of many of these 13 amino acids, particularly the values for glycine, hydroxyproline, and the absence of tryptophane, suggest that dentin protein resembles collagen.