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Sequence-Specific DNA Binding by the c-Myc Protein

Blackwell, T. Keith, Kretzner, Leo, Blackwood, Elizabeth M., Eisenman, Robert N., Weintraub, Harold·1990·Science

Abstract

While it has been known for some time that the c-Myc protein binds to random DNA sequences, no sequence-specific binding activity has been detected. At its carboxyl terminus, c-Myc contains a basic—helix-loop-helix (bHLH) motif, which is important for dimerization and specific DNA binding, as demonstrated for other bHLH protein family members. Of those studied, most bHLH proteins bind to sites that contain a CA- -TG consensus. In this study, the technique of selected and amplified binding-sequence (SAAB) imprinting was used to identify a DNA sequence that was recognized by c-Myc. A purified carboxyl-terminal fragment of human c-Myc that contained the bHLH domain bound in vitro in a sequence-specific manner to the sequence, CACGTG. These results suggest that some of the biological functions of Myc family proteins are accomplished by sequence-specific DNA binding that is mediated by the carboxyl-terminal region of the protein.

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Metadata

Authors
Blackwell, T. K., Kretzner, L., Blackwood, E. M., Eisenman, R. N., & Weintraub, H.
Venue
Science
Published
1990-11-23
Volume
250
Issue
4984
Pages
1149-1151
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2004205790
Cited by
872
References
2
FWCI
29.85
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Sequence-Specific DNA Binding by the c-Myc Protein. https://app.cochat.ai/papers/10.1126/science.2251503
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Blackwell, T. K., Kretzner, L., Blackwood, E. M., Eisenman, R. N., & Weintraub, H. (1990). Sequence-Specific DNA Binding by the c-Myc Protein. Science. https://doi.org/10.1126/science.2251503

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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