Structure of the human laminin alpha2-chain gene (LAMA2), which is affected in congenital muscular dystrophy.
We have determined the structure and complete exon size pattern of the human laminin alpha2-chain gene (LAMA2), which has been shown to be affected in congenital muscular dystrophy (Helbling-Leclerc, A., Zhang, X., Topaloglu, H., Cruaud, C., Tesson, F., Weissenbach, J., Tomé, F. M. S., Schwartz, K., Fardeau, M., Tryggvason, K., and Guicheney, P. (1995) Nat. Genet. 11, 216-218). The gene is over 260, 000 base pairs and contains 64 exons. The sequence of all exon-intron borders was determined. Two of the exons, i.e. exons 43 and 52, are extremely small in size, 6 and 12 base pairs, respectively. Comparison of the exon pattern of the human LAMA2 gene with that of the Drosophila LAMA gene revealed that only 2 of 63 intron locations in the 5'-end of the human gene match the intron locations in the Drosophila gene, which contains 14 introns.[1]References
- Structure of the human laminin alpha2-chain gene (LAMA2), which is affected in congenital muscular dystrophy. Zhang, X., Vuolteenaho, R., Tryggvason, K. J. Biol. Chem. (1996) [Pubmed]
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