Cited by 322Cancer-related Molecular PathwaysGenomics and Chromatin DynamicsChromatin Remodeling and Cancer

Specific repression of TATA-mediated but not initiator-mediated transcription by wild-type p53

Mack, David H., Vartikar, Jai, Pipas, James M., Laimins, Laimonis A.·1993·Nature

Abstract

The p53 protein is apparently central to the development of human cancers because both alleles are often found to be mutated in different tumour types. In addition, wild-type p53 can inhibit transformation by viral and cellular oncogenes in vitro, so p53 has been classified as a tumour suppressor. Investigations of the normal function of p53 have indicated that at least one of its functions could involve the activation of gene expression through the binding of specific DNA-regulatory sequences. Also, overexpression of p53 can mediate growth arrest and repress transcription from a variety of promoters. We demonstrate here both in vivo and in vitro that expression of wild-type p53 specifically represses the activity of promoters whose initiation is dependent on the presence of a TATA box. Promoters whose accurate transcription is directed by a pyrimidine-rich initiator element, however, are immune to the effects of p53. Furthermore, we observe that repression is mediated by an interaction of p53 with basal transcription factor(s). Thus, p53 appears to repress the activity of certain promoters through direct communication with TATA box-dependent basal transcription machinery.

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Crossref · 10.1038/363281a0

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24 of 24 references verified0 citation errors · 0 not checkable

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  • p53 was first reported to bind to coactivators including TATA-box binding protein, NF-Y, and Sp1, and to interfere with their transactivator function.

    “In 1993, p53 was first reported to bind to coactivators, including the TATA-box binding protein,73, 74 the CCAAT-box binding factor (NF-Y)75 and specificity protein 1 (Sp1) that binds to GC-boxes,76 and to interfere with their transactivator function.”

    From Census and evaluation of p53 target genes (2017) · cites this paper as [73]

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Authors
Mack, D. H., Vartikar, J., Pipas, J. M., & Laimins, L. A.
Affiliations
  • University of Chicago (US)
  • University of Pittsburgh (US)
  • Howard Hughes Medical Institute (US)
Venue
Nature
Published
1993-05
Volume
363
Issue
6426
Pages
281-283
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1969881374
Cited by
322
References
24
Citations by year
2022: 1 · 2021: 1 · 2020: 1 · 2017: 2 · 2014: 2 · 2013: 2 · 2012: 2
FWCI
21.03
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
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 › Chromatin Remodeling and Cancer
Keywords
p53, transcriptional repression, TATA box, initiator element, basal transcription factors, promoter activity, tumour suppressor, transcriptional regulation, growth arrest
MeSH terms
Animals, Cell Line, Globins, HeLa Cells, Humans, Promoter Regions, Genetic, Rabbits, Simian virus 40, Transcription, Genetic, Transfection, Tumor Suppressor Protein p53, TATA Box, 3T3 Cells, Mice

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