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Functional expression of a probable Arabidopsis thaliana potassium channel in Saccharomyces cerevisiae.
Open accessAbstract
We report the isolation of a cDNA (KAT1) from Arabidopsis thaliana that encodes a probable K+ channel. KAT1 was cloned by its ability to suppress a K+ transport-defective phenotype in mutant Saccharomyces cerevisiae cells. This suppression is sensitive to known K+ channel blockers, including tetraethylammonium and Ba2+ ions. The KAT1 cDNA contains an open reading frame capable of encoding a 78-kDa protein that shares structural features found in the Shaker superfamily of K+ channels. These include a cluster of six putative membrane-spanning helices (S1-S6) at the amino terminus of the protein, a presumed voltage-sensing region containing Arg/Lys-Xaa-Xaa-Arg/Lys repeats within S4, and the highly conserved pore-forming region (known as H5 or SS1-SS2). Our results suggest that the structural motif for K+ channels has been conserved between plants and animals.
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Cites
Interaction of Tetraethylammonium Ion Derivatives with the Potassium Channels of Giant Axons
Armstrong, C. M. (1971) · The Journal of General Physiology · doi:10.1085/jgp.58.4.413 · Cited by 929
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Metadata
- Authors
- Anderson, J. A., Huprikar, S. S., Kochian, L. V., Lucas, W. J., & Gaber, R. F.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1992-05
- Volume
- 89
- Issue
- 9
- Pages
- 3736-3740
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2032539806
- Cited by
- 659
- References
- 1
- FWCI
- 14.63
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Functional expression of a probable Arabidopsis thaliana potassium channel in Saccharomyces cerevisiae. https://app.cochat.ai/papers/10.1073/pnas.89.9.3736
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- Anderson, J. A., Huprikar, S. S., Kochian, L. V., Lucas, W. J., & Gaber, R. F. (1992). Functional expression of a probable Arabidopsis thaliana potassium channel in Saccharomyces cerevisiae. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.9.3736
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
