title: Wide distribution of the skin type I collagen alpha 3 chain in bony fish.
abstract: 1. Skin Type I collagens were isolated from the five species of non-teleostean fish and examined with respect to their subunit chains. 2. In addition to alpha 1(I) and alpha 2(I) chains, a fish-specific chain, alpha 3(I), was previously found only in teleostean fish. The present study, however, has revealed the occurrence of alpha 3(I) in a chondrostean fish, white sturgeon. 3. The alpha 3(I) gene appears to have arisen from a duplication of the alpha 1(I) gene near the time of the adaptive radiation of bony fish.
authors.affiliation: Laboratory of Food Biochemistry, Tokyo University of Fisheries, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kimura
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D005075:Biological Evolution; D002850:Chromatography, Gel; D003094:Collagen / Q000737:chemistry / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D005399:Fishes / Q000378:metabolism*; D010449:Peptide Mapping; D012867:Skin / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D003094:Collagen