Interactions of the COP9 Signalosome with the E3 Ubiquitin Ligase SCF in Mediating Auxin Response
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Interactions of the COP9 signalosome with the E3 ubiquitin ligase SCFTIRI in mediating auxin response.
The COP9 signalosome is an evolutionary conserved multiprotein complex of unknown function that acts as a negative regulator of photomorphogenic seedling development in Arabidopsis. Here, we show that plants with reduced COP9 signalosome levels had decreased auxin response similar to loss-of-function mutants of the E3 ubiquitin ligase SCFTIR1. Furthermore, we found that the COP9 signalosome and...
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