ArticleProceedings of the National Academy of Sciences of the United States of America2000
The histidine kinase-related domain participates in phytochrome B function but is dispensable.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed.
- Twenty-five years of photobodies: formation, composition, and the 2-compartment logic of phytochrome B signaling.Plant physiology · 2026Review
- Phytochrome B sets condensate number through graded nucleator states and seeding-site efficacy.Nature communications · 2026Article
- Intragenic suppressor screen of YHB identifies novel and known loss-of-function alleles of Arabidopsis phytochrome B.bioRxiv : the preprint server for biology · 2026Article
- Structural and coding variation inbioRxiv : the preprint server for biology · 2026Article
- Early Flowering 3 (ELF3) Inhibits Hypocotyl Phototropism in Light-GrownPlant direct · 2025Article
- Pr and Pfr structures of plant phytochrome A.Nature communications · 2025Article
- Phytochrome phosphorylation in plant light signaling.Frontiers in plant science · 2024Review
- The structure of Arabidopsis phytochrome A reveals topological and functional diversification among the plant photoreceptor isoforms.Nature plants · 2023Article
- FAR-RED INSENSITIVE 219 and phytochrome B corepress shade avoidance via modulating nuclear speckle formation.Plant physiology · 2023Article
- Article
- Differing biophysical properties underpin the unique signaling potentials within the plant phytochrome photoreceptor families.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Out of the Dark and Into the Light: A New View of Phytochrome Photobodies.Frontiers in plant science · 2021Review
- The Interaction Network and Signaling Specificity of Two-Component System inInternational journal of molecular sciences · 2020Review
- Regulation of monocot and dicot plant development with constitutively active alleles of phytochrome B.Plant direct · 2020Article
- A phyB-PIF1-SPA1 kinase regulatory complex promotes photomorphogenesis in Arabidopsis.Nature communications · 2019Article
- Plant Phytochromes and their Phosphorylation.International journal of molecular sciences · 2019Review
- Rapid and Dynamic Alternative Splicing Impacts the Arabidopsis Cold Response Transcriptome.The Plant cell · 2018Article
- Phytochrome B Requires PIF Degradation and Sequestration to Induce Light Responses across a Wide Range of Light Conditions.The Plant cell · 2018Article
- Mechanism of early light signaling by the carboxy-terminal output module of Arabidopsis phytochrome B.Nature communications · 2017Article
- Bottom-up Assembly of the Phytochrome Network.PLoS genetics · 2016Article
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2 authors.
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Abstract
Phytochromes are photoreceptors that control many plant light responses. Phytochromes have two carboxyl-terminal structural domains called the PAS repeat domain and the histidine kinase-related domain. These domains are each related to bacterial histidine kinase domains, and biochemical studies suggest that phytochromes are light-regulated kinases. The PAS repeat domain is important for proper phytochrome function and can interact with putative signaling partners. We have characterized several new phytochrome B mutants in Arabidopsis that express phyB protein, three of which affect the histidine kinase-related domain. Point mutations in the histidine kinase-related domain cause phenotypes similar to those of null mutants, indicating that this domain is important for phyB signaling. However, a truncation that removes most of the histidine kinase-related domain results in a phyB molecule with partial activity, suggesting that this domain is dispensable. These results suggest that phytochromes evolved in modular fashion. We discuss possible functions of the histidine kinase-related domain in phytochrome signaling.
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