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Brain myosin-V is a two-headed unconventional myosin with motor activity
Open accessAbstract
Chicken myosin-V is a member of a recently recognized class of myosins distinct from both the myosins-I and the myosins-II. We report here the purification, electron microscopic visualization, and motor properties of a protein of this class. Myosin-V molecules consist of two heads attached to an approximately 30 nm stalk that ends in a globular region of unknown function. Myosin-V binds to and decorates F-actin, has actin-activated magnesium-ATPase activity, and is a barbed-end-directed motor capable of moving actin filaments at rates of up to 400 nm/s. Myosin-V does not form filaments. Each myosin-V heavy chain is associated with approximately four calmodulin light chains as well as two less abundant proteins of 23 and 17 kd.
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Citations
Cited by
The Molecular Motor Toolbox for Intracellular Transport
Vale, R. D. (2003) · Cell · doi:10.1016/s0092-8674(03)00111-9 · Cited by 1,982
The axonal transport of mitochondria
Hollenbeck, P. J., & Saxton, W. M. (2005) · Journal of Cell Science · doi:10.1242/jcs.02745 · Cited by 771
Three-dimensional structural dynamics of myosin V by single-molecule fluorescence polarization
Forkey, J. N., Quinlan, M. E., Alexander Shaw, M., Corrie, J. E. T., & Goldman, Y. E. (2003) · Nature · doi:10.1038/nature01529 · Cited by 455
Myosin-V stepping kinetics: A molecular model for processivity
Rief, M., Rock, R. S., Mehta, A. D., Mooseker, M. S., Cheney, R. E., & Spudich, J. A. (2000) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.97.17.9482 · Cited by 402
Self-citationThe gated gait of the processive molecular motor, myosin V
Veigel, C., Wang, F., Bartoo, M. L., Sellers, J. R., & Molloy, J. E. (2002) · Nature Cell Biology · doi:10.1038/ncb732 · Cited by 371
Metadata
- Authors
- Cheney, R.
- Venue
- Cell
- Publisher
- Elsevier BV
- Published
- 1993-10-08
- Volume
- 75
- Issue
- 1
- Pages
- 13-23
- ISSN
- 0092-8674 (ISSN-L)
- OpenAlex
- W2073353027
- Cited by
- 444
- References
- 0
- FWCI
- 7.15
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Cheney, R. (1993). Brain myosin-V is a two-headed unconventional myosin with motor activity. Cell. https://doi.org/10.1016/0092-8674(93)90675-g
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