Conformational changes and dynamics of enzymes are often critical steps in their function as biocatalysts. To study the conformational change of the enzyme adenylate kinase on the single molecule level, a high-resolution optical trap was built in the frame of this work. Using the optical trap, the correlation between binding of an inhibitor and closing of the enzyme was investigated. Furthermore, it was possible to determine the binding affinity of substrates and their effect on the conformation of the enzyme. Overall, the presented research shows that it is possible to observe and manipulate conformational transitions between different native states of enzymes on the nanometer scale using single molecule force spectroscopy.
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Conformational changes and dynamics of enzymes are often critical steps in their function as biocatalysts. To study the conformational change of the enzyme adenylate kinase on the single molecule level, a high-resolution optical trap was built in the frame of this work. Using the optical trap, the correlation between binding of an inhibitor and closing of the enzyme was investigated. Furthermore, it was possible to determine the binding affinity of substrates and their effect on the conformatio...
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