Lens-specific expression and developmental regulation of the bacterial chloramphenicol acetyltransferase gene driven by the murine alpha A-crystallin promoter in transgenic mice.
AUTOR(ES)
Overbeek, P A
RESUMO
Two lines of transgenic mice with one to two copies of a DNA fragment containing nucleotides -364 to +45 of the murine alpha A-crystallin gene linked to the bacterial chloramphenicol acetyltransferase (CAT) gene expressed the CAT gene only in their eye lenses. Both CAT activity and alpha A-crystallin were first detected in eyes at approximately 12.5 days of embryonic development, suggesting that the alpha A-CAT fusion gene and the endogenous alpha A-crystallin gene are co-regulated during lens development in the transgenic mice. These experiments show that the murine alpha A-crystallin gene contains a short, cis-acting, tissue-specific regulatory sequence at its 5' end that can target the expression of the bacterial CAT gene, and probably foreign eukaryotic genes, specifically to the ocular lens.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=390860Documentos Relacionados
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