Transcriptional regulation of the human GLUT4 gene promoter in diabetic transgenic mice

A. L. Olson, Jeffrey E. Pessin

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

We previously reported that 2400 base pairs (bp) of 5'-flanking DNA is sufficient for tissue-specific and hormonal/metabolic regulation of the human GLUT4 gene in transgenic mice (Liu, M.-L., Olson, A.L., Moye-Rowley, W.S., Buse, J. B., Bell, G. I., and Pessin,, J. E. (1992) J. Biol. Chem. 267, 11673-11676). To further define the DNA sequences required for GLUT4 expression, we generated transgenic mice carrying 1975, 1639, 1154, 730, and 412 bp of the GLUT4 5'-flank (hG4) fused to the chloramphenicol acetyltransferase (CAT) reporter gene. The 1975-hG4-CAT, 1639-hG4-CAT, and 1154-hG4-CAT constructs were expressed in a tissue-specific manner identical to the endogenous murine GLUT4 mRNA. Regulation of these reporter gene constructs in insulin-deficient diabetes also paralleled the endogenous gene. In contrast, 730-hG4-CAT was expressed at high levels only in skeletal muscle and at low levels in all of the other tissues examined. Additionally, expression of 412-hG4-CAT was completely unrestricted. Neither the 730-hG4- CAT nor the 412-hG4-CAT reporter genes displayed any insulin-dependent regulation. These data demonstrate that a skeletal muscle-specific DNA element is located within 730 bp of the GLUT4 5'-flanking DNA but that 1154 bp is necessary to direct the full extent of tissue-specific and insulin- dependent regulation of the human GLUT4 gene in transgenic mice.

Original languageEnglish (US)
Pages (from-to)23491-23495
Number of pages5
JournalJournal of Biological Chemistry
Volume270
Issue number40
DOIs
StatePublished - 1995
Externally publishedYes

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Chloramphenicol O-Acetyltransferase
Transgenic Mice
Genes
Base Pairing
Reporter Genes
Tissue
Insulin
Muscle
DNA
Skeletal Muscle
DNA sequences
Medical problems
Messenger RNA

ASJC Scopus subject areas

  • Biochemistry

Cite this

Transcriptional regulation of the human GLUT4 gene promoter in diabetic transgenic mice. / Olson, A. L.; Pessin, Jeffrey E.

In: Journal of Biological Chemistry, Vol. 270, No. 40, 1995, p. 23491-23495.

Research output: Contribution to journalArticle

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