title: Structure of the pro alpha 2 (I) collagen gene.
abstract: Fifty-four kilobase pairs (kbp) of cloned chicken DNA containing the entire 38-kbp pro alpha 2 (I) collagen gene have been isolated and characterized. DNA sequence analysis of a select 4 kbp of the gene has precisely described 14 exons which comprise one-third of the sequences encoding the triple-helical domain of the collagen protein. These exons range in size from 45 to 108 base pairs (bp), are all multiples of the 9 bp that code for the repeating triplet, Gly-X-Y, and have an average size of 70 bp. About 50 introns interrupt this gene. Nevertheless, introns do not separate the coding sequences for the ends of the central triple-helical structural domain and the ends of the propeptide domains.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001482:Base Composition; D001483:Base Sequence; D002645:Chickens; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D005796:Genes; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization; D011347:Procollagen / Q000235:genetics*
chemical_list: D004274:DNA, Recombinant; D011347:Procollagen; D004262:DNA Restriction Enzymes