Project Details
Description
We have solved the first structure of a protein that mimics B-form DNA. This structural mimicry enables it to inhibit totally the activity of an entire group of DNA-binding enzymes, the type I DNA restriction and modification enzymes.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
Layman's description
We have solved the first structure of a protein that mimics B-form DNA. This structural mimicry enables it to inhibit totally the activity of an entire group of DNA-binding enzymes, the type I DNA restriction and modification enzymes.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
Key findings
We have solved the first structure of a protein that mimics B-form DNA. This structural mimicry enables it to inhibit totally the activity of an entire group of DNA-binding enzymes, the type I DNA restriction and modification enzymes.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
Our work was published in 10 research papers and inspired the company EPICENTRE to develop the mimic as a microbiological tool. The mimic has also been developed as an affinity tag for protein purification. The research papers have been cited over 300 times.
We combined rigorous thermodynamic and kinetic approaches with protein engineering to determine how the DNA mimicry operates and to compare this novel mechanism with the normal DNA binding process of the R/M enzymes. An understanding of how DNA mimicry by proteins is achieved in structural, energetic and kinetic terms provides a foundation for the development of a new area of proteinaceous DNA mimics to produce research tools, diagnostic tests and, possibly, therapeutic materials.
Our work was published in 10 research papers and inspired the company EPICENTRE to develop the mimic as a microbiological tool. The mimic has also been developed as an affinity tag for protein purification. The research papers have been cited over 300 times.
| Status | Finished |
|---|---|
| Effective start/end date | 1/06/03 → 31/05/06 |
Funding
- Biotechnology and Biological Sciences Research Council: £164,929.00
Fingerprint
Explore the research topics touched on by this project. These labels are generated based on the underlying awards/grants. Together they form a unique fingerprint.
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DNA mimicry by proteins and the control of enzymatic activity on DNA
Dryden, D. T. F., Aug 2006, In: Trends in biotechnology. 24, 8, p. 378-382 5 p.Research output: Contribution to journal › Literature review › peer-review
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DNA mimicry by proteins
Dryden, D. T. F. & Tock, M. R., Apr 2006, In: Biochemical Society Transactions. 34, p. 317-319 3 p.Research output: Contribution to journal › Article › peer-review
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Strong physical constraints on sequence-specific target location by proteins on DNA molecules
Flyvbjerg, H., Keatch, S. A. & Dryden, D. T. F., 2006, In: Nucleic Acids Research. 34, 9, p. 2550-2557 8 p.Research output: Contribution to journal › Article › peer-review
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