title: Studies of the proteins, peptides and free amino acids of mature bovine enamel.
abstract: 1. The organic matrix of enamel from erupted bovine teeth has been found to be composed mostly of small peptides containing principally aspartic acid, glycine, glutamic acid and serine. 2. A small amount of higher-molecular-weight components has been isolated by various procedures. One non-diffusible fraction was found to be heterogeneous in the ultracentrifuge, and composed principally of material that by gel filtration indicated a molecular weight greater than 30000. These components were largely carbohydrate in nature (glycoproteins and glycopeptides), containing only small amounts of amino acids.
mesh_terms: D000596:Amino Acids; D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002850:Chromatography, Gel; D003743:Dental Enamel; D003746:Dental Enamel Proteins; D003747:Dental Enamel Solubility; D004492:Edetic Acid; D006851:Hydrochloric Acid; D066298:In Vitro Techniques; D010455:Peptides; D014461:Ultracentrifugation
chemical_list: D000596:Amino Acids; D003746:Dental Enamel Proteins; D010455:Peptides; D004492:Edetic Acid; D006851:Hydrochloric Acid