Cited by 111Genomics and Chromatin DynamicsHematopoietic Stem Cell TransplantationCytokine Signaling Pathways and Interactions

Physical and functional interactions between the transcription factor PU.1 and the coactivator CBP

Yamamoto, Hitomi, Kihara-Negishi, Fumiko, Yamada, Toshiyuki, Hashimoto, Yoshiyuki, Oikawa, Tsuneyuki·1999·Oncogene

Abstract

Yeast two-hybrid system was employed to isolate novel proteins that physically interact with PU.1, a member of Ets family transcription factors. Sequence analyses of several isolated clones positive for beta-galactosidase activity revealed that one of these clones was confirmed to encode a transcriptional coactivator, CREB binding protein (CBP). GST binding assay showed that the interacting sites were located at the transcriptional activation domain of PU.1 through 74-122 and the region spanning residues 1283-1915 of CBP. CBP potentiated PU.1-mediated transcription of the reporter gene driven by the multimerized PU.1-binding sites, suggesting that CBP functions as a coactivator for PU.1. Considering that CBP is a limited cellular component to function as a coactivator for several transcription factors, CBP may mediate synergistic and antagonistic interactions between PU.1 and other transcription factors during the process of hematopoietic cell differentiation.

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Crossref · 10.1038/sj.onc.1202427

Cites

48 of 48 references verified0 citation errors · 0 not checkable

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  • PU.1 can interact with CBP/p300 and TRIM33.

    “as PU.1 can interact with CBP/p300 (refs 39, 40) and TRIM33”
  • There is limited understanding of the mechanisms that determine coactivator versus corepressor recruitment by RUNX1 and PU.1.

    “There is limited understanding of the mechanisms that determine coactivator versus corepressor recruitment by RUNX1 and PU.1.17–20”

    From RUNX1 regulates corepressor interactions of PU.1 (2011) · cites this paper as [18]

  • PU.1 can interact with coactivators or corepressors to function as either a transcriptional activator or a transcriptional repressor.

    “PU.1 can interact with coactivators or corepressors to function as either a transcriptional activator or a transcriptional repressor.17–19”

    From RUNX1 regulates corepressor interactions of PU.1 (2011) · cites this paper as [18]

  • The mechanisms that regulate corepressor versus coactivator interactions of RUNX1 and PU.1 are incompletely understood.

    “However, the mechanisms that regulate corepressor versus coactivator interactions of RUNX1 and PU.1 are incompletely understood.17–20”

    From RUNX1 regulates corepressor interactions of PU.1 (2011) · cites this paper as [18]

  • CBP stimulates PU.1 activity in transient transfections.

    “and CBP stimulates PU.1 activity in transient trans- fections (82).”

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Authors
Yamamoto, H., Kihara-Negishi, F., Yamada, T., Hashimoto, Y., & Oikawa, T.
Affiliations
Sasaki Institute (JP)
Venue
Oncogene
Published
1999-02-18
Volume
18
Issue
7
Pages
1495-1501
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W2318149005
Cited by
111
References
49
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2021: 1 · 2019: 5 · 2018: 2 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 1 · 2013: 1 · 2012: 1
FWCI
3.54
Type
journal article
Language
en
Open access
closed
Locations
  • Oncogene (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
PU.1, CREB-binding protein, CBP, transcriptional coactivator, ETS transcription factors, protein-protein interaction, transactivation domain, transcriptional activation
MeSH terms
Proto-Oncogene Protein Spi-1, Animals, Nuclear Proteins, Proto-Oncogene Proteins, Recombinant Fusion Proteins, Trans-Activators

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