ArticleThe Plant cell2013
Arabidopsis casein kinase1 proteins CK1.3 and CK1.4 phosphorylate cryptochrome2 to regulate blue light signaling.
Article in The Plant cell, 2013. 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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43 citing papers in PubMed, 74 citations in OpenAlex.
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- A genome-wide association study identifies novel players in Na and Fe homeostasis in Arabidopsis thaliana under alkaline-salinity stress.The Plant journal : for cell and molecular biology · 2023Article
- Abscisic acid induces the expression of AsKIN during the recovery period of garlic cryopreservation.Plant cell reports · 2022Article
- Integration of transcriptomic and proteomic analyses reveals several levels of metabolic regulation in the excess starch and early senescent leaf mutant lses1 in rice.BMC plant biology · 2022Article
- Plant casein kinases phosphorylate and destabilize a cyclin-dependent kinase inhibitor to promote cell division.Plant physiology · 2021Article
- Genome-wide identification, evolutionary estimation and functional characterization of two cotton CKI gene types.BMC plant biology · 2021Article
- Functions and regulation of the serine/threonine protein kinase CK1 family: moving beyond promiscuity.The Biochemical journal · 2020Review
- PI4Kγ2 Interacts with E3 Ligase MIEL1 to Regulate Auxin Metabolism and Root Development.Plant physiology · 2020Article
- Casein Kinase 1 Regulates Cytorhabdovirus Replication and Transcription by Phosphorylating a Phosphoprotein Serine-Rich Motif.The Plant cell · 2020Article
- Photoexcited Cryptochrome2 Interacts Directly with TOE1 and TOE2 in Flowering Regulation.Plant physiology · 2020Article
- FRA1 Kinesin Modulates the Lateral Stability of Cortical Microtubules through Cellulose Synthase-Microtubule Uncoupling Proteins.The Plant cell · 2020Article
- SHAGGY-like kinase 12 regulates flowering through mediating CONSTANS stability inScience advances · 2020Article
- Phospholipase D-derived phosphatidic acid promotes root hair development under phosphorus deficiency by suppressing vacuolar degradation of PIN-FORMED2.The New phytologist · 2020Article
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4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Casein kinase1 (CK1) plays crucial roles in regulating growth and development via phosphorylating various substrates throughout the eukaryote kingdom. Blue light is crucial for normal growth of both plants and animals, and blue light receptor cryptochrome2 (CRY2) undergoes blue light-dependent phosphorylation and degradation in planta. To study the function of plant CK1s, systematic genetic analysis showed that deficiency of two paralogous Arabidopsis thaliana CK1s, CK1.3 and CK1.4, caused shortened hypocotyls, especially under blue light, while overexpression of either CK1.3 or CK1.4 resulted in the insensitive response to blue light and delayed flowering under long-day conditions. CK1.3 or CK1.4 act dependently on CRY2, and overexpression of CK1.3 or CK1.4 significantly suppresses the hypersensitive response to blue light by CRY2 overexpression. Biochemical studies showed that CK1.3 and CK1.4 directly phosphorylate CRY2 at Ser-587 and Thr-603 in vitro and negatively regulate CRY2 stability in planta, which are stimulated by blue light, further confirming the crucial roles of CK1.3 and CK1.4 in blue light responses through phosphorylating CRY2. Interestingly, expression of CK1.3 and CK1.4 is stimulated by blue light and feedback regulated by CRY2-mediated signaling. These results provide direct evidence for CRY2 phosphorylation and informative clues on the mechanisms of CRY2-mediated light responses.
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