Cited by 276Cancer-related Molecular PathwaysGenomics and Chromatin DynamicsHeat shock proteins research

A functional p53-responsive intronic promoter is contained within the human mdm2 gene

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Zauberman, Arie, Flusberg, Deborah, Haupt, Ygal, Barak, Yaacov, Oren, Moshe·1995·Nucleic Acids Research

Abstract

The mdm2 gene is a target for transcriptional activation by the p53 tumor suppressor gene product. Previous work has revealed that the mouse mdm2 gene contains two promoters: one is located upstream to the gene and is active in the absence of p53, the other resides within the first intron and requires p53 for transcriptional activity. To determine whether this unique promoter activation pattern is biologically important, we investigated the structure and function of the corresponding region of the human mdm2 (hmdm2) gene. We report here that the hmdm2 gene also contains an intronic, p53-dependent promoter. The structural features of this promoter are highly conserved between mouse and man, as opposed to the lack of conservation of the first exon. This promoter is triggered in vivo in the presence of activated wild type p53, leading to the production of novel mRNA species. The intronic hmdm2 promoter contains two tandem p53 binding elements. Deletion analysis suggests that optimal promoter activity requires the simultaneous binding of p53 to both elements; this may serve to prevent premature triggering of the promoter by p53.

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  • In MDM2, p53 binding to the first intron leads to the formation of transcripts that differ from the constitutionally expressed MDM2 isoform.

    “In case of MDM2, for example, p53 binding to the first intron leads to the formation of transcripts that differ from the constitutionally expressed MDM2 isoform.67, 68”

    From Census and evaluation of p53 target genes (2017) · cites this paper as [68]

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  1. Chen.C.Y, Oliner,DJ., Zhan.Q., FomaceJ.A JR., Vogelstem.B. and Kastan.B.M. (1994) Proc. Nail. Acad. Sci. USA 91, 2684-2688.
  2. PerryJvi.E., PietteJ., ZawadzkiJA, Harvey.D. and LevineAJ. (1993) Proc. Nail. Acad. Sci. USA 90, 11623-11627.
  3. ZaubermanA, LupoA and Oren,M-(1995) Oncogene, in press.
  4. Eliyahu.D., Michalovitz,D., Ehyahu.S., Pinhasi-Kimhi.O. and Orenjvi. (1989) Proc. Natl. Acad. Sci. USA 86, 8763-8767.
  5. McKay.R. (1981) /. Mol. Biol. 145, 471^*88. Downloaded from https://academic.oup.com/nar/article/23/14/2584/1016866 by guest on 24 December 2023

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Authors
Zauberman, A., Flusberg, D., Haupt, Y., Barak, Y., & Oren, M.
Affiliations
Weizmann Institute of Science (IL)
Corresponding author
Oren, Moshe
Venue
Nucleic Acids Research
Published
1995
Volume
23
Issue
14
Pages
2584-2592
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2058737236
Cited by
276
References
38
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 6 · 2019: 3 · 2018: 3 · 2017: 9 · 2016: 4 · 2015: 12 · 2014: 12 · 2013: 9 · 2012: 11
FWCI
3.40
Type
journal article
Language
en
Open access
Locations
  • Nucleic Acids Research (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • The Mouseion at the JAXlibrary (Jackson Laboratory) (submittedVersion)
Funders
  • Minerva Foundation
  • National Cancer Institute (R01CA040099)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
Keywords
MDM2 gene, p53, intronic promoter, transcriptional activation, p53 tumor suppressor
MeSH terms
Animals, Base Sequence, DNA, Humans, Introns, Molecular Sequence Data, Nuclear Proteins, Promoter Regions, Genetic, Proto-Oncogene Proteins, Sequence Homology, Nucleic Acid, Species Specificity, Tumor Cells, Cultured, Genes, p53, Conserved Sequence, DNA Primers, Mice, Proto-Oncogene Proteins c-mdm2

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