Proteolytic cleavage of p53 mutants in response to mismatched DNA
1999
How p53 Mutants Interact with Mismatched DNA
publication
Author Information
Author(s): Mee T, Okorokov A L, Metcalfe S, Milner J
Primary Institution: YCR P53 Research Group, Department of Biology, University of York
Hypothesis
Do p53 mutants retain the ability to undergo proteolytic cleavage when interacting with mismatched DNA?
Conclusion
p53 mutants with intact conformational structure can undergo proteolytic cleavage similar to wild-type p53 when binding to mismatched DNA.
Supporting Evidence
- All p53 mutants tested bound to a mismatched DNA target in vitro.
- Studies indicate that p53 mutants with intact conformational structure retain the ability to undergo proteolytic cleavage.
- Proteolytic cleavage is crucially dependent upon a wild-type conformation of the protein.
Takeaway
The study found that even mutated versions of a protein called p53 can still work with damaged DNA, but they need to be shaped correctly to do so.
Methodology
The study involved comparing the ability of p53 mutants to bind to mismatched DNA and undergo proteolytic cleavage in vitro and in vivo.
Digital Object Identifier (DOI)
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