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Cited by 550

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

The Role of Solvent Viscosity in the Dynamics of Protein Conformational Changes

Ansari, Anjum, Jones, Colleen M., Henry, Eric R., Hofrichter, James, Eaton, William A.·1992·Science

Abstract

Nanosecond lasers were used to measure the rate of conformational changes in myoglobin after ligand dissociation at ambient temperatures. At low solvent viscosities the rate is independent of viscosity, but at high viscosities it depends on approximately the inverse first power of the viscosity. Kramers theory for unimolecular rate processes can be used to explain this result if the friction term is modified to include protein as well as solvent friction. The theory and experiment suggest that the dominant factor in markedly reducing the rate of conformational changes in myoglobin at low temperatures (<200 K) is the very high viscosity (>10 7 centipoise) of the glycerol-water solvent. That is, at low temperatures conformational substates may not be "frozen" so much as "stuck."

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Metadata

Authors
Ansari, A., Jones, C. M., Henry, E. R., Hofrichter, J., & Eaton, W. A.
Venue
Science
Published
1992-06-26
Volume
256
Issue
5065
Pages
1796-1798
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1981716245
Cited by
550
References
1
FWCI
4.45
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Role of Solvent Viscosity in the Dynamics of Protein Conformational Changes. https://app.cochat.ai/papers/10.1126/science.1615323
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Ansari, A., Jones, C. M., Henry, E. R., Hofrichter, J., & Eaton, W. A. (1992). The Role of Solvent Viscosity in the Dynamics of Protein Conformational Changes. Science. https://doi.org/10.1126/science.1615323

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