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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1993 Jun 15;90(12):5479–5483. doi: 10.1073/pnas.90.12.5479

Activation of the tyrosine aminotransferase gene is dependent on synergy between liver-specific and hormone-responsive elements.

D Nitsch 1, M Boshart 1, G Schütz 1
PMCID: PMC46744  PMID: 8100067

Abstract

Tyrosine aminotransferase (TAT; L-tyrosine:2-oxoglutarate aminotransferase, EC 2.6.1.5) gene activity is stimulated by glucocorticoids and glucagon and is repressed by insulin. Expression and responsiveness to the different signal transduction pathways are restricted to the liver, in which the gene is activated shortly after birth. Here we provide a model for the basis of this tissue specificity of the hormonal control. In the two enhancers mediating hormone induction of TAT gene activity we find the hormone response elements in combination with binding sites for constitutive liver-enriched transcription factors: proteins of the hepatocyte nuclear factor 3 family bind in the vicinity of the glucocorticoid response element located 2.5 kb upstream of the transcription start site, while hepatocyte nuclear factor 4 interacts with an essential element in the cAMP-responsive enhancer at -3.6 kb. By juxtaposing the liver-specific element and the target sequence of the signal transduction pathway the regulatory properties of either enhancer can be reconstituted. Thus, the interdependence of the respective enhancer motifs restricts the hormonal activation of the TAT gene to the liver. The coincidence of the onset of TAT gene expression around birth with the perinatal changes in the concentrations of glucocorticoids, glucagon, and insulin suggests cooperation of signal transduction pathways and cell type-specific transcription factors in the developmental activation of the TAT gene.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Beato M. Gene regulation by steroid hormones. Cell. 1989 Feb 10;56(3):335–344. doi: 10.1016/0092-8674(89)90237-7. [DOI] [PubMed] [Google Scholar]
  2. Becker P. B., Gloss B., Schmid W., Strähle U., Schütz G. In vivo protein-DNA interactions in a glucocorticoid response element require the presence of the hormone. Nature. 1986 Dec 18;324(6098):686–688. doi: 10.1038/324686a0. [DOI] [PubMed] [Google Scholar]
  3. Boshart M., Weih F., Schmidt A., Fournier R. E., Schütz G. A cyclic AMP response element mediates repression of tyrosine aminotransferase gene transcription by the tissue-specific extinguisher locus Tse-1. Cell. 1990 Jun 1;61(5):905–916. doi: 10.1016/0092-8674(90)90201-o. [DOI] [PubMed] [Google Scholar]
  4. Brooks A. R., Blackhart B. D., Haubold K., Levy-Wilson B. Characterization of tissue-specific enhancer elements in the second intron of the human apolipoprotein B gene. J Biol Chem. 1991 Apr 25;266(12):7848–7859. [PubMed] [Google Scholar]
  5. Brüggemeier U., Kalff M., Franke S., Scheidereit C., Beato M. Ubiquitous transcription factor OTF-1 mediates induction of the MMTV promoter through synergistic interaction with hormone receptors. Cell. 1991 Feb 8;64(3):565–572. doi: 10.1016/0092-8674(91)90240-y. [DOI] [PubMed] [Google Scholar]
  6. Buetti E., Kühnel B. Distinct sequence elements involved in the glucocorticoid regulation of the mouse mammary tumor virus promoter identified by linker scanning mutagenesis. J Mol Biol. 1986 Aug 5;190(3):379–389. doi: 10.1016/0022-2836(86)90009-4. [DOI] [PubMed] [Google Scholar]
  7. Chen E. Y., Seeburg P. H. Supercoil sequencing: a fast and simple method for sequencing plasmid DNA. DNA. 1985 Apr;4(2):165–170. doi: 10.1089/dna.1985.4.165. [DOI] [PubMed] [Google Scholar]
  8. Costa R. H., Grayson D. R., Darnell J. E., Jr Multiple hepatocyte-enriched nuclear factors function in the regulation of transthyretin and alpha 1-antitrypsin genes. Mol Cell Biol. 1989 Apr;9(4):1415–1425. doi: 10.1128/mcb.9.4.1415. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Danesch U., Gloss B., Schmid W., Schütz G., Schüle R., Renkawitz R. Glucocorticoid induction of the rat tryptophan oxygenase gene is mediated by two widely separated glucocorticoid-responsive elements. EMBO J. 1987 Mar;6(3):625–630. doi: 10.1002/j.1460-2075.1987.tb04800.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. DiPersio C. M., Jackson D. A., Zaret K. S. The extracellular matrix coordinately modulates liver transcription factors and hepatocyte morphology. Mol Cell Biol. 1991 Sep;11(9):4405–4414. doi: 10.1128/mcb.11.9.4405. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Falvey E., Schibler U. How are the regulators regulated? FASEB J. 1991 Mar 1;5(3):309–314. doi: 10.1096/fasebj.5.3.2001790. [DOI] [PubMed] [Google Scholar]
  12. Frain M., Swart G., Monaci P., Nicosia A., Stämpfli S., Frank R., Cortese R. The liver-specific transcription factor LF-B1 contains a highly diverged homeobox DNA binding domain. Cell. 1989 Oct 6;59(1):145–157. doi: 10.1016/0092-8674(89)90877-5. [DOI] [PubMed] [Google Scholar]
  13. Grange T., Roux J., Rigaud G., Pictet R. Cell-type specific activity of two glucocorticoid responsive units of rat tyrosine aminotransferase gene is associated with multiple binding sites for C/EBP and a novel liver-specific nuclear factor. Nucleic Acids Res. 1991 Jan 11;19(1):131–139. doi: 10.1093/nar/19.1.131. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Green S., Chambon P. Nuclear receptors enhance our understanding of transcription regulation. Trends Genet. 1988 Nov;4(11):309–314. doi: 10.1016/0168-9525(88)90108-4. [DOI] [PubMed] [Google Scholar]
  15. Hashimoto S., Schmid W., Schütz G. Transcriptional activation of the rat liver tyrosine aminotransferase gene by cAMP. Proc Natl Acad Sci U S A. 1984 Nov;81(21):6637–6641. doi: 10.1073/pnas.81.21.6637. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Ip Y. T., Poon D., Stone D., Granner D. K., Chalkley R. Interaction of a liver-specific factor with an enhancer 4.8 kilobases upstream of the phosphoenolpyruvate carboxykinase gene. Mol Cell Biol. 1990 Jul;10(7):3770–3781. doi: 10.1128/mcb.10.7.3770. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Jantzen H. M., Strähle U., Gloss B., Stewart F., Schmid W., Boshart M., Miksicek R., Schütz G. Cooperativity of glucocorticoid response elements located far upstream of the tyrosine aminotransferase gene. Cell. 1987 Apr 10;49(1):29–38. doi: 10.1016/0092-8674(87)90752-5. [DOI] [PubMed] [Google Scholar]
  18. Johnson P. F., McKnight S. L. Eukaryotic transcriptional regulatory proteins. Annu Rev Biochem. 1989;58:799–839. doi: 10.1146/annurev.bi.58.070189.004055. [DOI] [PubMed] [Google Scholar]
  19. Karin M., Smeal T. Control of transcription factors by signal transduction pathways: the beginning of the end. Trends Biochem Sci. 1992 Oct;17(10):418–422. doi: 10.1016/0968-0004(92)90012-x. [DOI] [PubMed] [Google Scholar]
  20. Ladias J. A., Hadzopoulou-Cladaras M., Kardassis D., Cardot P., Cheng J., Zannis V., Cladaras C. Transcriptional regulation of human apolipoprotein genes ApoB, ApoCIII, and ApoAII by members of the steroid hormone receptor superfamily HNF-4, ARP-1, EAR-2, and EAR-3. J Biol Chem. 1992 Aug 5;267(22):15849–15860. [PubMed] [Google Scholar]
  21. Lai E., Prezioso V. R., Smith E., Litvin O., Costa R. H., Darnell J. E., Jr HNF-3A, a hepatocyte-enriched transcription factor of novel structure is regulated transcriptionally. Genes Dev. 1990 Aug;4(8):1427–1436. doi: 10.1101/gad.4.8.1427. [DOI] [PubMed] [Google Scholar]
  22. Lai E., Prezioso V. R., Tao W. F., Chen W. S., Darnell J. E., Jr Hepatocyte nuclear factor 3 alpha belongs to a gene family in mammals that is homologous to the Drosophila homeotic gene fork head. Genes Dev. 1991 Mar;5(3):416–427. doi: 10.1101/gad.5.3.416. [DOI] [PubMed] [Google Scholar]
  23. Luckow B., Schütz G. CAT constructions with multiple unique restriction sites for the functional analysis of eukaryotic promoters and regulatory elements. Nucleic Acids Res. 1987 Jul 10;15(13):5490–5490. doi: 10.1093/nar/15.13.5490. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Maniatis T., Goodbourn S., Fischer J. A. Regulation of inducible and tissue-specific gene expression. Science. 1987 Jun 5;236(4806):1237–1245. doi: 10.1126/science.3296191. [DOI] [PubMed] [Google Scholar]
  25. McGrane M. M., Yun J. S., Patel Y. M., Hanson R. W. Metabolic control of gene expression: in vivo studies with transgenic mice. Trends Biochem Sci. 1992 Jan;17(1):40–44. doi: 10.1016/0968-0004(92)90426-a. [DOI] [PubMed] [Google Scholar]
  26. Mietus-Snyder M., Sladek F. M., Ginsburg G. S., Kuo C. F., Ladias J. A., Darnell J. E., Jr, Karathanasis S. K. Antagonism between apolipoprotein AI regulatory protein 1, Ear3/COUP-TF, and hepatocyte nuclear factor 4 modulates apolipoprotein CIII gene expression in liver and intestinal cells. Mol Cell Biol. 1992 Apr;12(4):1708–1718. doi: 10.1128/mcb.12.4.1708. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Miksicek R., Heber A., Schmid W., Danesch U., Posseckert G., Beato M., Schütz G. Glucocorticoid responsiveness of the transcriptional enhancer of Moloney murine sarcoma virus. Cell. 1986 Jul 18;46(2):283–290. doi: 10.1016/0092-8674(86)90745-2. [DOI] [PubMed] [Google Scholar]
  28. Nichols M., Weih F., Schmid W., DeVack C., Kowenz-Leutz E., Luckow B., Boshart M., Schütz G. Phosphorylation of CREB affects its binding to high and low affinity sites: implications for cAMP induced gene transcription. EMBO J. 1992 Sep;11(9):3337–3346. doi: 10.1002/j.1460-2075.1992.tb05412.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Nitsch D., Boshart M., Schütz G. Extinction of tyrosine aminotransferase gene activity in somatic cell hybrids involves modification and loss of several essential transcriptional activators. Genes Dev. 1993 Feb;7(2):308–319. doi: 10.1101/gad.7.2.308. [DOI] [PubMed] [Google Scholar]
  30. Nitsch D., Stewart A. F., Boshart M., Mestril R., Weih F., Schütz G. Chromatin structures of the rat tyrosine aminotransferase gene relate to the function of its cis-acting elements. Mol Cell Biol. 1990 Jul;10(7):3334–3342. doi: 10.1128/mcb.10.7.3334. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Piña B., Brüggemeier U., Beato M. Nucleosome positioning modulates accessibility of regulatory proteins to the mouse mammary tumor virus promoter. Cell. 1990 Mar 9;60(5):719–731. doi: 10.1016/0092-8674(90)90087-u. [DOI] [PubMed] [Google Scholar]
  32. Rigaud G., Roux J., Pictet R., Grange T. In vivo footprinting of rat TAT gene: dynamic interplay between the glucocorticoid receptor and a liver-specific factor. Cell. 1991 Nov 29;67(5):977–986. doi: 10.1016/0092-8674(91)90370-e. [DOI] [PubMed] [Google Scholar]
  33. Schmid E., Schmid W., Jantzen M., Mayer D., Jastorff B., Schütz G. Transcription activation of the tyrosine aminotransferase gene by glucocorticoids and cAMP in primary hepatocytes. Eur J Biochem. 1987 Jun 15;165(3):499–506. doi: 10.1111/j.1432-1033.1987.tb11467.x. [DOI] [PubMed] [Google Scholar]
  34. Schubart U. K. Regulation of gene expression in rat hepatocytes and hepatoma cells by insulin: quantitation of messenger ribonucleic acid's coding for tyrosine aminotransferase, tryptophan oxygenase, and phosphoenolpyruvate carboxykinase. Endocrinology. 1986 Oct;119(4):1741–1749. doi: 10.1210/endo-119-4-1741. [DOI] [PubMed] [Google Scholar]
  35. Sladek F. M., Zhong W. M., Lai E., Darnell J. E., Jr Liver-enriched transcription factor HNF-4 is a novel member of the steroid hormone receptor superfamily. Genes Dev. 1990 Dec;4(12B):2353–2365. doi: 10.1101/gad.4.12b.2353. [DOI] [PubMed] [Google Scholar]
  36. Strähle U., Schmid W., Schütz G. Synergistic action of the glucocorticoid receptor with transcription factors. EMBO J. 1988 Nov;7(11):3389–3395. doi: 10.1002/j.1460-2075.1988.tb03212.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Tao W., Lai E. Telencephalon-restricted expression of BF-1, a new member of the HNF-3/fork head gene family, in the developing rat brain. Neuron. 1992 May;8(5):957–966. doi: 10.1016/0896-6273(92)90210-5. [DOI] [PubMed] [Google Scholar]
  38. Weigel D., Jäckle H. The fork head domain: a novel DNA binding motif of eukaryotic transcription factors? Cell. 1990 Nov 2;63(3):455–456. doi: 10.1016/0092-8674(90)90439-l. [DOI] [PubMed] [Google Scholar]
  39. Weih F., Stewart A. F., Boshart M., Nitsch D., Schütz G. In vivo monitoring of a cAMP-stimulated DNA-binding activity. Genes Dev. 1990 Aug;4(8):1437–1449. doi: 10.1101/gad.4.8.1437. [DOI] [PubMed] [Google Scholar]

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