title: Proteins of the periodontium. Characterization of the insoluble collagens of bovine dental cementum.
abstract: Cyanogen bromide (CNBr) peptides were prepared of the insoluble collagen of bovine dental cementum. Following chromatographic separation, the peptides were identified by their amino-acid composition. Type I collagen ([alpha1(I)]2alpha2) accounted for more than 90% of the organic matrix, while Type III collagen ([alpha1(III)]3) was present at a level of approximately 5%. Amino-acid analyses revealed that the CNBr peptides from alpha1(I) and alpha2 chains of cementum closely resembled the corresponding peptides from calf skin. The only systematic difference was a higher level of hydroxylation of prolyl and lysyl residues of the cementum peptides.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002417:Cattle; D002845:Chromatography; D003094:Collagen / Q000032:analysis*; D003488:Cyanogen Bromide; D003739:Dental Cementum / Q000032:analysis*; D006900:Hydroxylation
chemical_list: D000596:Amino Acids; D003094:Collagen; D003488:Cyanogen Bromide