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Recognition of a DNA Operator by the Repressor of Phage 434: A View at High Resolution
Abstract
The repressors of temperate bacteriophages such as 434 and lambda control transcription by binding to a set of DNA operator sites. The different affinity of repressor for each of these sites ensures efficient regulation. High-resolution x-ray crystallography was used to study the DNA-binding domain of phage 434 repressor in complex with a synthetic DNA operator. The structure shows recognition of the operator by direct interactions with base pairs in the major groove, combined with the sequence-dependent ability of DNA to adopt the required conformation on binding repressor. In particular, a network of three-centered bifurcated hydrogen bonds among base pairs in the operator helps explain why 434 repressor prefers certain sites over others. These bonds, which stabilize the conformation of the bound DNA, can form only with certain sequences.
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Cited by
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Cho, Y., Gorina, S., Jeffrey, P. D., & Pavletich, N. P. (1994) · Science · doi:10.1126/science.8023157 · Cited by 2,551
Zinc Finger-DNA Recognition: Crystal Structure of a Zif268-DNA Complex at 2.1 Å
Pavletich, N. P., & Pabo, C. O. (1991) · Science · doi:10.1126/science.2028256 · Cited by 2,061
The role of DNA shape in protein–DNA recognition
Rohs, R., West, S. M., Sosinsky, A., Liu, P., Mann, R. S., & Honig, B. (2009) · Nature · doi:10.1038/nature08473 · Cited by 1,096
Kissinger, C. R., Liu, B., Martin-Blanco, E., Kornberg, T. B., & Pabo, C. O. (1990) · Cell · doi:10.1016/0092-8674(90)90453-l · Cited by 986
A structural taxonomy of DNA-binding domains
Harrison, S. C. (1991) · Nature · doi:10.1038/353715a0 · Cited by 608
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Metadata
- Authors
- Aggarwal, A. K., Rodgers, D. W., Drottar, M., Ptashne, M., & Harrison, S. C.
- Venue
- Science
- Published
- 1988-11-11
- Volume
- 242
- Issue
- 4880
- Pages
- 899-907
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2037928324
- Cited by
- 529
- References
- 0
- FWCI
- 17.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- Aggarwal, A. K., Rodgers, D. W., Drottar, M., Ptashne, M., & Harrison, S. C. (1988). Recognition of a DNA Operator by the Repressor of Phage 434: A View at High Resolution. Science. https://doi.org/10.1126/science.3187531
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