Cited by 147Genomics and Chromatin DynamicsEstrogen and related hormone effectsMetabolism, Diabetes, and Cancer

SRC-1 and GRIP1 Coactivate Transcription with Hepatocyte Nuclear Factor 4

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Wang, Jen-Chywan, Stafford, John M., Granner, Daryl K.·1998·Journal of Biological Chemistry

Abstract

Hepatocyte nuclear factor-4 (HNF4), a member of the nuclear receptor superfamily, plays an important role in tissue-specific gene expression, including genes involved in hepatic glucose metabolism. In this study, we show that SRC-1 and GRIP1, which act as coactivators for various nuclear receptors, associate with HNF4 in vivo and enhance its transactivation potential. The AF-2 domain of HNF4 is required for this interaction and for the potentiation of transcriptional activity by these coactivators. p300 can also serve as a coactivator with HNF4, and it synergizes with SRC-1 to further augment the activity of HNF4. HNF4 is also a key regulator of the expression of hepatocyte nuclear factor-1 (HNF1). The overexpression of SRC-1 or GRIP1 enhances expression from a HNF1 gene promoter-reporter in HepG2 hepatoma cells, and this requires an intact HNF4-binding site in the HNF1 gene promoter. Type 1 maturity onset diabetes of young (MODY), which is characterized by abnormal glucose-mediated insulin secretion, is caused by mutations of the HNF4 gene. A mutation of the HNF4-binding site in the HNF1 gene promoter has also been associated with MODY. Thus, HNF4 is involved in the regulation of glucose homeostasis at several levels and along with the SRC-1, GRIP1, and p300 may play an important role in the pathophysiology of non-insulin-dependent diabetes mellitus.

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  • HNF4A was previously shown to recruit several coactivators such as glucocorticoid receptor interacting protein 1, steroid receptor coactivator1 and cAMP response element binding proteins to regulate gene expression.

    “In addition to FOXA family members, HNF4A was previously shown to recruit several coactivators such as glucocorticoid receptor interacting protein 1, steroid receptor coactivator1 and cAMP response element binding proteins to regulate gene expression (41, 43).”

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Research works printed but not linked: 8

  1. Sladek, F. M. (1994) in Liver Gene Expression (Tronche, F., and Yaniv, M., eds) Vol. 11, pp. 207-223, R. G. Landes Company, Austin, TX 2.
  2. Hall, R. K., Sladek, F. M., and Granner, D. K. (1995) Proc. Natl. Acad. Sci.
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  4. Smith, C. L., Onate, S. A., Tsai, M. J., and O'Malley, B. W. (1996) Proc. Natl. Acad. Sci. U. S. A. 93, 8884 -8888
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  8. Stoffel, M., and Duncan, S. A. (1997) Proc. Natl. Acad. Sci. U. S. A. 94, 13209 -13214

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Authors
Wang, J.-C., Stafford, J. M., & Granner, D. K.
Affiliations
Vanderbilt University Medical Center (US)
Corresponding author
Granner, Daryl K.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1998-11
Volume
273
Issue
47
Pages
30847-30850
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2082605633
Cited by
147
References
42
Citations by year
2026: 1 · 2025: 1 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 1 · 2019: 6 · 2018: 2 · 2017: 2 · 2016: 2 · 2015: 7 · 2014: 1 · 2013: 1 · 2012: 5
FWCI
3.15
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Vanderbilt University
  • National Institutes of Health (DK 20593)
  • Vanderbilt Diabetes Research and Training Center, Vanderbilt University Medical Center
  • National Institute of General Medical Sciences (GM 07347, T32GM007347)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK035107, DK 20593, DK 25107, R37DK035107, P30DK020593)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
HNF4, SRC-1, GRIP1, P300, transcriptional coactivator, nuclear receptor transactivation, AF-2 domain, HNF1, maturity-onset diabetes of the young, glucose homeostasis, hepatic gene expression, insulin secretion
MeSH terms
Binding Sites, Diabetes Mellitus, Type 2, DNA-Binding Proteins, Glucose, Homeostasis, Phosphoproteins, Promoter Regions, Genetic, Protein Binding, Recombinant Fusion Proteins, Transcription Factors, Transcriptional Activation, Saccharomyces cerevisiae Proteins, Histone Acetyltransferases, Hepatocyte Nuclear Factor 4, Nuclear Receptor Coactivator 2, Nuclear Receptor Coactivator 1

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