Review
Ethylene and cytokinin signalling in plants: the role of two-component systems
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- PMID: 9493014
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Review
Ethylene and cytokinin signalling in plants: the role of two-component systems
Essays Biochem.
1997.
Abstract
Two-component systems involve the use of histidine kinases and response-regulator proteins, and allow for the perception of a variety of signals. ETR1 is an ethylene receptor in plants, and contains domains with sequence similarity to histidine kinases and response regulators. Ethylene signalling involves a phosphorylation cascade, employing both histidine kinases and serine/threonine kinases. CKI1 is involved in the cytokinin signalling pathway in plants, and contains domains with sequence similarity to histidine kinases and response regulators. The identification of two-component systems in eukaryotes indicates that this is a general signalling mechanism, not limited solely to prokaryotes.
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