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  • Title: An amelogenin gene defect associated with human X-linked amelogenesis imperfecta.
    Author: Collier PM, Sauk JJ, Rosenbloom SJ, Yuan ZA, Gibson CW.
    Journal: Arch Oral Biol; 1997 Mar; 42(3):235-42. PubMed ID: 9188994.
    Abstract:
    Dental enamel is a product of ameloblast cells, which secrete a mineralizing organic matrix, composed primarily of amelogenin proteins. The amelogenins are thought to be crucial for development of normal, highly mineralized enamel. The X-chromosomal amelogenin gene is a candidate gene for those cases of amelogenesis imperfecta, resulting in defective enamel, in which inheritance is X-linked. In this report, a kindred is described that has a C to A mutation resulting in a pro to thr change in exon 6 of the X-chromosomal amelogenin gene in three affected individuals, a change not found in unaffected members of the kindred. The proline that is changed by the mutation is conserved in amelogenin genes from all species examined to date.
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