Isolation and characterization of a human pro alpha 2(I) collagen gene segment.

Journal Article

Over 20 kilobase pairs of the human pro alpha 2(I) collagen gene have been isolated and characterized by restriction endonuclease mapping, cell-free translation of hybrid-selected RNA, and DNA sequence analysis. We have sequenced an exon and determined its length to be 108 base pairs (bp). This is consistent with the organization of chick and sheep collagen genes in that exons are multiples of 9 bp in length, frequently being 54 and 108 bp. The sequenced exon was bordered by a GT (guanine-thymine) at its 3' end and an AT (adenine-thymine) at its 5' end. This pattern has been found at all normal intron-exon junctions in eukaryotic cells. The amino acid sequence derived from DNA sequencing of this 108 bp exon revealed 88% homology compared to the amino acid sequence of bovine pro alpha 2(I). The bases encoded 12 Gly-X-Y triplets characteristic of the helical portion of collagen. A unique sequence Gly-Gly-Lys-Gly-Glu-Lys identified this fragment as alpha 2(I) collagen.

Full Text

Duke Authors

Cited Authors

  • Tajima, S; Ting, JP; Pinnell, SR; Kaufman, RE

Published Date

  • March 1984

Published In

Volume / Issue

  • 82 / 3

Start / End Page

  • 265 - 269

PubMed ID

  • 6321602

International Standard Serial Number (ISSN)

  • 0022-202X

Language

  • eng

Conference Location

  • United States