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Regulation of Corepressor Function by Nuclear NADH
Abstract
The corepressor CtBP (carboxyl-terminal binding protein) is involved in transcriptional pathways important for development, cell cycle regulation, and transformation. We demonstrate that CtBP binding to cellular and viral transcriptional repressors is regulated by the nicotinamide adenine dinucleotides NAD + and NADH, with NADH being two to three orders of magnitude more effective. Levels of free nuclear nicotinamide adenine dinucleotides, determined using two-photon microscopy, correspond to the levels required for half-maximal CtBP binding and are considerably lower than those previously reported. Agents capable of increasing NADH levels stimulate CtBP binding to its partners in vivo and potentiate CtBP-mediated repression. We propose that this ability to detect changes in nuclear NAD + /NADH ratio allows CtBP to serve as a redox sensor for transcription.
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Cites
Transcriptional silencing and longevity protein Sir2 is an NAD-dependent histone deacetylase
Imai, S.-I., Armstrong, C. M., Kaeberlein, M., & Guarente, L. (2000) · Nature · doi:10.1038/35001622 · Cited by 3,510
Williamson, D., Lund, P., & Krebs, H. (1967) · Biochemical Journal · doi:10.1042/bj1030514 · Cited by 1,871
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Coordination of circadian timing in mammals
Reppert, S. M., & Weaver, D. R. (2002) · Nature · doi:10.1038/nature00965 · Cited by 4,379
Reactive oxygen species, cellular redox systems, and apoptosis
Circu, M. L., & Aw, T. Y. (2010) · Free Radical Biology and Medicine · doi:10.1016/j.freeradbiomed.2009.12.022 · Cited by 3,340
Snail, Zeb and bHLH factors in tumour progression: An alliance against the epithelial phenotype?
Peinado, H., Olmeda, D., & Cano, A. (2007) · Nature reviews. Cancer · doi:10.1038/nrc2131 · Cited by 3,121
Aerobic glycolysis: Meeting the metabolic requirements of cell proliferation
Lunt, S. Y., & Vander Heiden, M. G. (2011) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev-cellbio-092910-154237 · Cited by 3,057
Cantó, C., Menzies, K. J., & Auwerx, J. (2015) · Cell Metabolism · doi:10.1016/j.cmet.2015.05.023 · Cited by 1,648
Metadata
- Authors
- Zhang, Q., Piston, D. W., & Goodman, R. H.
- Venue
- Science
- Published
- 2002-03-08
- Volume
- 295
- Issue
- 5561
- Pages
- 1895-1897
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1665675901
- Cited by
- 620
- References
- 2
- FWCI
- 21.59
- Type
- journal article
- Language
- en
- Open access
- closed
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