Coordinate regulation of two genes encoding gluconeogenic enzymes by the trans-dominant locus Tse-1.

J. Lem, A. C. Chin, M. J. Thayer, R. J. Leach, R. E. Fournier

Research output: Contribution to journalArticle

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Abstract

Tissue-specific extinguisher-1 (Tse-1) is a mouse genetic locus that can repress liver-specific tyrosine aminotransferase gene expression in trans. To search for other Tse-1-responsive genes, hepatoma microcell hybrids retaining mouse chromosome 11 or human chromosome 17, containing murine Tse-1 and human TSE1, respectively, were screened for expression of liver-specific mRNAs. While most liver gene activity was unaffected in such hybrids, phosphoenolpyruvate carboxykinase and tyrosine aminotransferase gene expression was coordinately repressed in these clones. Extinction of both genes was apparently mediated by a single genetic locus that resides on human chromosome 17.

Original languageEnglish (US)
Pages (from-to)7302-7306
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume85
Issue number19
DOIs
StatePublished - Oct 1988

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