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Ligand Binding Modulates the Mechanical Stability of Dihydrofolate Reductase

We use single-molecule force spectroscopy to demonstrate that the mechanical stability of the enzyme dihydrofolate reductase (DHFR) is modulated by ligand binding. In the absence of bound ligands, DHFR extends at very low forces, averaging 27 pN, without any characteristic mechanical fingerprint. By...

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Detalhes bibliográficos
Main Authors: Ainavarapu, Sri Rama Koti, Li, Lewyn, Badilla, Carmen L., Fernandez, Julio M.
Formato: Artigo
Idioma:Inglês
Publicado em: Biophysical Society 2005
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC1366830/
https://ncbi.nlm.nih.gov/pubmed/16100277
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1529/biophysj.105.062034
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