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Magnetosome vesicles are present before magnetite formation, and MamA is required for their activation
Open accessAbstract
Bacterial magnetosomes are intracellular compartments that house highly ordered magnetite crystals. By using Magnetospirillum sp. AMB-1 as a model system, we show that magnetosome vesicles exist in the absence of magnetite, biomineralization of magnetite proceeds simultaneously in multiple vesicles, and biomineralization proceeds from the same location in each vesicle. The magnetosome-associated protein, MamA, is required for the formation of functional magnetosome vesicles and displays a dynamic subcellular localization throughout the growth cycle of magnetotactic bacteria. Together, these results suggest that the magnetosome precisely coordinates magnetite biomineralization and can serve as a model system for the study of organelle biogenesis in noneukaryotic cells.
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Cited by
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Scheffel, A., Gruska, M., Faivre, D., Linaroudis, A., Plitzko, J. M., & Schüler, D. (2006) · Nature · doi:10.1038/nature04382 · Cited by 537
The identification and biogeochemical interpretation of fossil magnetotactic bacteria
Kopp, R. E., & Kirschvink, J. L. (2008) · Earth-Science Reviews · doi:10.1016/j.earscirev.2007.08.001 · Cited by 393
Novel magnetic nanomaterials inspired by magnetotactic bacteria: Topical review
Prozorov, T., Bazylinski, D. A., Mallapragada, S. K., & Prozorov, R. (2013) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2013.04.002 · Cited by 137
McCutcheon, J., & Southam, G. (2018) · Chemical Geology · doi:10.1016/j.chemgeo.2018.09.016 · Cited by 70
Distinct gene clusters drive formation of ferrosome organelles in bacteria
Grant, C. R., Amor, M., Trujillo, H. A., Krishnapura, S., Iavarone, A. T., & Komeili, A. (2022) · Nature · doi:10.1038/s41586-022-04741-x · Cited by 45
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Metadata
- Authors
- Komeili, A., Vali, H., Beveridge, T. J., & Newman, D. K.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2004-03-02
- Volume
- 101
- Issue
- 11
- Pages
- 3839-3844
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2152024210
- Cited by
- 344
- References
- 0
- FWCI
- 6.56
- Type
- journal article
- Language
- en
- Open access
- green
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- Komeili, A., Vali, H., Beveridge, T. J., & Newman, D. K. (2004). Magnetosome vesicles are present before magnetite formation, and MamA is required for their activation. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0400391101
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