Cited by 558Genomics and Chromatin DynamicsCancer-related Molecular PathwaysEpigenetics and DNA Methylation

Association of Myn, the murine homolog of Max, with c-Myc stimulates methylation-sensitive DNA binding and ras cotransformation

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Prendergast, George C., Lawe, Deirdre, Ziff, Edward B.·1991·Cell

Abstract

Myn, a novel murine approximately 18 kd basic/helix-loop-helix/"leucine zipper" (B/HLH/LZ) protein, forms a specific DNA-binding complex with the c-Myc oncoprotein through the HLH/LZ motif in both proteins. c-Myc/Myn recognizes a c-Myc-binding site (GACCACGTGGTC) with higher affinity than either protein by itself. CpG methylation of the recognition site greatly inhibits DNA binding, suggesting that DNA methylation may regulate the c-Myc/Myn complex in vivo. In 3T3 fibroblasts, Myn mRNA levels are induced several-fold by serum with delayed early kinetics, suggesting regulation by immediate-early gene products. Coexpression of Myn in a myc/ras rat embryo fibroblast focus formation assay specifically augmented c-myc transforming activity. We suggest that interaction of Myn with c-Myc stabilizes sequence-specific DNA binding in vivo.

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Crossref · 10.1016/0092-8674(91)90457-a

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  • Manipulation of the methylation status of DNA sequences results in differential binding of transcription factors, including E2F, AP2α, MYC and MYN.

    “The manipulation of the methylation status of DNA sequences has been shown (mostly in in vitro studies) to result in the differential binding of TFs, including E2F, AP2α, MYC and MYN88–95.”

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Authors
Prendergast, G. C., Lawe, D., & Ziff, E. B.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Cell
Publisher
Elsevier BV
Published
1991-05
Volume
65
Issue
3
Pages
395-407
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2049114614
Cited by
558
References
71
Citations by year
2026: 3 · 2025: 3 · 2024: 2 · 2023: 2 · 2022: 5 · 2021: 2 · 2020: 6 · 2019: 5 · 2018: 7 · 2017: 4 · 2016: 4 · 2015: 4 · 2014: 10 · 2013: 5 · 2012: 14
FWCI
27.23
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Howard Hughes Medical Institute
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
c-Myc, protein-protein interaction, DNA binding, CpG methylation, serum induction, immediate early genes, 3T3 fibroblasts, focus formation
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Blood, Cell Transformation, Neoplastic, Cells, Cultured, DNA, DNA-Binding Proteins, Gene Expression Regulation, Methylation, Molecular Sequence Data, Genes, ras, Transfection, Polymerase Chain Reaction, Genes, myc, Proto-Oncogene Proteins c-myc, Leucine Zippers, Mice, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors

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