Regulation of forestomach-specific expression of the murine adenosine deaminase gene

Ping A. Xu, John Winston, Surjit K. Datta, Rodney E. Kellems

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The maturation of stratified squamous epithelium of the upper gastrointestinal tract is a highly ordered process of development and differentiation. Information on the molecular basis of this process is, however, limited. Here we report the identification of the first murine forestomach regulatory element using the murine adenosine deaminase (Ada) gene as a model. In the adult mouse, Ada is highly expressed in the terminally differentiated epithelial layer of upper gastrointestinal tract tissues. The data reported here represent the identification and detailed analysis of a 1.1-kilobase (kb) sequence located 3.4-kb upstream of the transcription initiation site of the murine Ada gene, which is sufficient to target cat reporter gene expression to the forestomach in transgenic mice. This 1.1-kb fragment is capable of directing cat reporter gene expression mainly to the forestomach of transgenic mice, with a level comparable to the endogenous Ada gene. This expression is localized to the appropriate cell types, confers copy number dependence, and shows the same developmental regulation. Mutational analysis revealed the functional importance of multiple transcription factor-binding sites.

Original languageEnglish (US)
Pages (from-to)10316-10323
Number of pages8
JournalJournal of Biological Chemistry
Volume274
Issue number15
DOIs
StatePublished - Apr 9 1999

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Adenosine Deaminase
Genes
Gene expression
Upper Gastrointestinal Tract
Reporter Genes
Transgenic Mice
Cats
Transcription Initiation Site
Gene Expression
Transcription Factors
Binding Sites
Tissue
Epithelium

ASJC Scopus subject areas

  • Biochemistry

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Regulation of forestomach-specific expression of the murine adenosine deaminase gene. / Xu, Ping A.; Winston, John; Datta, Surjit K.; Kellems, Rodney E.

In: Journal of Biological Chemistry, Vol. 274, No. 15, 09.04.1999, p. 10316-10323.

Research output: Contribution to journalArticle

Xu, Ping A. ; Winston, John ; Datta, Surjit K. ; Kellems, Rodney E. / Regulation of forestomach-specific expression of the murine adenosine deaminase gene. In: Journal of Biological Chemistry. 1999 ; Vol. 274, No. 15. pp. 10316-10323.
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