Cited by 149Genomics and Chromatin DynamicsChromatin Remodeling and CancerAcute Lymphoblastic Leukemia research

The Leukemia-Associated Gene TEL Encodes a Transcription Repressor Which Associates with SMRT and mSin3A

Chakrabarti, Subhra R., Nucifora, Giuseppina·1999·Biochemical and Biophysical Research Communications

Abstract

The E-26 transforming specific (ETS)-related gene TEL, also known as ETV6, encodes a strong transcription repressor that is rearranged in several recurring chromosomal rearrangements associated with leukemia and congenital fibrosarcoma. The TEL protein contains two functional domains that have been partially characterized: a helix-loop-helix (HLH) domain (also known as a pointed domain) at the N-terminus, which physically interacts with itself, with the SUMO-conjugating enzyme UBC9, and with FLI1; and, at the C-terminus, an ETS domain with DNA-binding properties. Little is known about the function of the central region of TEL. The HLH domain and the central region of TEL are consistently maintained in the t(12;21), which is the most frequent chromosomal translocation involving TEL. In this study, we found that the HLH domain and the central region of TEL mediate transcription repression by two distinct mechanisms. The central region involves the recruitment of a repression complex, including SMRT and mSin3A. The HLH domain represses gene transcription through a mechanism that is independent of known corepressors. Thus, TEL belongs to a growing number of transcription factors rearranged by chromosomal translocations that are associated with the corepressor complexes.

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Crossref · 10.1006/bbrc.1999.1605

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Authors
Chakrabarti, S. R., & Nucifora, G.
Affiliations
Loyola University Medical Center (US)
Corresponding author
Nucifora, Giuseppina
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
1999-11
Volume
264
Issue
3
Pages
871-877
ISSN
0006-291X (ISSN-L)
OpenAlex
W1998859037
Cited by
149
References
30
Citations by year
2026: 2 · 2024: 3 · 2023: 4 · 2022: 2 · 2020: 4 · 2019: 5 · 2018: 4 · 2017: 6 · 2016: 3 · 2015: 4 · 2014: 3 · 2013: 4 · 2012: 4
FWCI
3.90
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (CA 72675, R01CA072675, CA 67189)
Topics
  • 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
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Acute Lymphoblastic Leukemia research
Keywords
TEL, ETV6, transcriptional repression, SMRT, mSin3A, corepressor complex, helix-loop-helix domain, ETS domain, leukemia, congenital fibrosarcoma, chromosomal translocation, Ubc9, FLI1, SUMOylation
MeSH terms
ETS Translocation Variant 6 Protein, Animals, DNA-Binding Proteins, Humans, Leukemia, Repressor Proteins, Transcription Factors, Transcription, Genetic, Transfection, Gene Expression Regulation, Neoplastic, 3T3 Cells, Sequence Analysis, DNA, Proto-Oncogene Proteins c-ets, Mice, Sin3 Histone Deacetylase and Corepressor Complex, Nuclear Receptor Co-Repressor 2

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