The applicability of dynamic light scattering to studies of the kinetics of unfolding and refolding reactions of proteins is discussed and demonstrated experimentally. The experimental set-up and the data acquisition and data evaluation schemes that have been optimized for kinetic experiments are described. The relationship of the signal-to-noise ratio to the minimum data acquisition time that is needed to obtain results of sufficiently high precision is discussed. It turns out that the attainable time resolution is of the order of a few seconds for proteins with molar masses of about 50,000 g.mol(-1) and concentrations of 1 g.1(-1). Thus, DLS is too slow to follow conformational changes in the subsecond region, but it is useful for studies of unfolding-refolding reactions of proteins that proceed with time constants in the range of seconds or minutes. This is demonstrated by investigations of the kinetics of the cold denaturation of 3-phosphoglycerate kinase from yeast.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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