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Structural changes in bacteriorhodopsin during proton translocation revealed by neutron diffraction.
Open accessAbstract
A neutron diffraction study of spectroscopic states for the light-energized proton pump bacteriorhodopsin (BR) is presented. The photocycle states BR-568 and M were generated at temperatures above 4 degrees C and were measured after trapping at--180 degrees C. In the BR-568 to M-state transition, which is known to be a key step in transmembrane proton pumping, reversible structural changes of the protein were detected. These structural alterations occur in the neighborhood of the cyclohexene ring and at the Schiff's base end of the chromophore retinal. They are interpreted as a 1-2 degree tilt of three or four of the transmembrane alpha-helices or as positional changes of four or five amino acids. The structural changes observed are inherent in the transport mechanism of bacteriorhodopsin.
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Citations
Cited by
Structure of bacteriorhodopsin at 1.55 Å resolution
Luecke, H., Schobert, B., Richter, H.-T., Cartailler, J.-P., & Lanyi, J. K. (1999) · Journal of Molecular Biology · doi:10.1006/jmbi.1999.3027 · Cited by 1,450
Electron-crystallographic Refinement of the Structure of Bacteriorhodopsin
Grigorieff, N., Ceska, T. A., Downing, K. H., Baldwin, J. M., & Henderson, R. (1996) · Journal of Molecular Biology · doi:10.1006/jmbi.1996.0328 · Cited by 956
CLOSING IN ON BACTERIORHODOPSIN: Progress in Understanding the Molecule
Haupts, U., Tittor, J., & Oesterhelt, D. (1999) · Annual Review of Biophysics and Biomolecular Structure · doi:10.1146/annurev.biophys.28.1.367 · Cited by 577
Lanyi, J. K. (2004) · Annual Review of Physiology · doi:10.1146/annurev.physiol.66.032102.150049 · Cited by 565
Electron diffraction analysis of structural changes in the photocycle of bacteriorhodopsin.
Subramaniam, S., Gerstein, M., Oesterhelt, D., & Henderson, R. (1993) · The EMBO Journal · doi:10.1002/j.1460-2075.1993.tb05625.x · Cited by 447
Metadata
- Authors
- Dencher, N. A., Dresselhaus, D., Zaccai, G., & Büldt, G.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1989-10
- Volume
- 86
- Issue
- 20
- Pages
- 7876-7879
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2054091316
- Cited by
- 257
- References
- 0
- FWCI
- 4.12
- Type
- journal article
- Language
- en
- Open access
- green
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- Dencher, N. A., Dresselhaus, D., Zaccai, G., & Büldt, G. (1989). Structural changes in bacteriorhodopsin during proton translocation revealed by neutron diffraction. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.86.20.7876
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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