Ligand Binding Modulates the Mechanical Stability of Dihydrofolate Reductase
نویسندگان
چکیده
منابع مشابه
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 contrast, in the presence of micromolar concentrations of the ligands methotrexate, nicotinamide...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2005
ISSN: 0006-3495
DOI: 10.1529/biophysj.105.062034