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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bradshaw, M. S. Belting, H. G. Shashikant, C. S. Bollekens, J. A. Ruddle, F. H. |
| Description | Author Affiliation: Bradshaw MS ( Department of Biology, Yale University, New Haven, Connecticut 06520, USA.); |
| Abstract | Hox genes are located in highly conserved clusters. The significance of this organization is unclear, but one possibility is that regulatory regions for individual genes are dispersed throughout the cluster and shared with other Hox genes. This hypothesis is supported by studies on several Hox genes in which even large genomic regions immediately surrounding the gene fail to direct the complete expression pattern in transgenic mice. In particular, previous studies have identified proximal regulatory regions that are primarily responsible for early phases of mouse Hoxc8 expression. To locate additional regulatory regions governing expression during the later periods of development, a yeast homologous recombination-based strategy utilizing the pClasper vector was employed. Using homologous recombination into pClasper, we cloned a 27-kb region around the Hoxc8 gene from a yeast artificial chromosome. A reporter gene was introduced into the coding region of the isolated gene by homologous recombination in yeast. This large fragment recapitulates critical aspects of Hoxc8 expression in transgenic mice. We show that the regulatory elements that maintain the anterior boundaries of expression in the neural tube and paraxial mesoderm are located between 11 and 19 kb downstream of the gene. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 6 |
| Volume Number | 93 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1996-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Gene Expression Regulation, Developmental Genes, Homeobox Homeodomain Proteins Genetics Regulatory Sequences, Nucleic Acid Animals Chromosome Mapping Chromosomes, Artificial, Yeast Cloning, Molecular Genetic Vectors Mice Mice, Transgenic Molecular Sequence Data RNA, Messenger Recombination, Genetic Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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