Ethylene signalling: redundant receptors all have their say.
In Arabidopsis, the hormone ethylene is sensed by five related receptors, all of the 'two-component' variety. The receptors constitutively suppress a downstream signalling pathway, and are inactivated by ethylene, leading to the activation of genes necessary for the various ethylene-regulated biological responses.
Theologis
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Plant Gene Expression Center 800 Buchanan Street, Albany, California 94710, USA.
D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism; D005030:Ethylenes / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D010937:Plant Growth Regulators / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D011956:Receptors, Cell Surface / Q000235:genetics / Q000378:metabolism*; D015398:Signal Transduction
D005030:Ethylenes; D010937:Plant Growth Regulators; D010940:Plant Proteins; D011956:Receptors, Cell Surface; C083750:ethylene receptors, plant; C036216:ethylene