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Murine bone morphogenetic protein-4 gene: existence of multiple promoters and exons for the 5'-untranslated region
T Kurihara1, K Kitamura, K Takaoka
1Suntory Institute for Biomedical Research, Osaka, Japan.
Biochemical and Biophysical Research Communications
|May 14, 1993
Abstract:
A murine genomic clone of about 16 kilobases encompassing putatively entire bone morphogenetic protein (BMP)-4 gene has been isolated. Comparison with the cDNA clones revealed the existence of at least five exons on the 3' side of the clone. There are two alternative transcriptional start sites, one is for the first exon the other for the second, the resulting exon organization in mRNA is I-III-IV-V and II-III-IV-V, respectively. The coding region is dispersed between exons IV and V. Both promoter regions carry no canonical TATA box but carry GC rich sequences.