The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Correlating Structural Dynamics and Function in Single Ribozyme Molecules
Abstract
We have studied the correlation between structural dynamics and function of the hairpin ribozyme. The enzyme-substrate complex exists in either docked (active) or undocked (inactive) conformations. Using single-molecule fluorescence methods, we found complex structural dynamics with four docked states of distinct stabilities and a strong memory effect where each molecule rarely switches between different docked states. We also found substrate cleavage to be rate-limited by a combination of conformational transitions and reversible chemistry equilibrium. The complex structural dynamics quantitatively explain the heterogeneous cleavage kinetics common to many catalytic RNAs. The intimate coupling of structural dynamics and function is likely a general phenomenon for RNA.
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Citations
Cites
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Analysis of Single-Molecule FRET Trajectories Using Hidden Markov Modeling
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Metadata
- Authors
- Zhuang, X., Kim, H., Pereira, M. J. B., Babcock, H. P., Walter, N. G., & Chu, S.
- Venue
- Science
- Published
- 2002-05-24
- Volume
- 296
- Issue
- 5572
- Pages
- 1473-1476
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2102032812
- Cited by
- 512
- References
- 24
- FWCI
- 13.18
- Type
- journal article
- Language
- en
- Open access
- closed
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