title: Isolation and partial characterization of basement membrane-like collagens from bovine thoracic aorta.
abstract: Collagen polymorphism was investigated in the bovine thoracic aortic media after extraction by a technique involving reduction of disulfide bonds followed by limited pepsin digestion. Type I, III, IV and V collagens were all fractionated from each other in the native state by differential salt precipitation both in acidic and neutral conditions. Type IV and V collagen were both found to be similar, if not identical, to the same collagens isolated from other tissues, the Type IV collagen fraction clearly containing two different alpha-sized components. The possible function of the different collagen types in aortic structure is briefly discussed.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001013:Aorta, Thoracic / Q000032:analysis*; D002417:Cattle; D002852:Chromatography, Ion Exchange; D003094:Collagen / Q000145:classification / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel
chemical_list: D000596:Amino Acids; D003094:Collagen