title: Identification of N-methylated basic amino acids from human adult teeth.
abstract: NE-monomethyl-lysine, NG-NG'-dimethyl-arginine, and NG-NG-dimethyl-arginine from tooth protein fractions were identified utilizing thin-layer chromatography, amino acid analysis, and gas chromatography. It is suggested that a relationship exists between the presence of these N-methylated basic amino acids and the resting stage of tooth tissue.
mesh_terms: D000328:Adult; D001120:Arginine / Q000031:analogs & derivatives* / Q000302:isolation & purification; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D006801:Humans; D008239:Lysine / Q000031:analogs & derivatives* / Q000302:isolation & purification; D008745:Methylation; D014070:Tooth / Q000032:analysis*
chemical_list: D001120:Arginine; D008239:Lysine