2QKE
 
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3K0E
 | | Crystal structure of the phosphorylation-site mutant T426N of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-24 | | Release date: | 2010-03-31 | | Last modified: | 2024-11-06 | | Method: | X-RAY DIFFRACTION (3.2 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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2GBL
 | | Crystal Structure of Full Length Circadian Clock Protein KaiC with Phosphorylation Sites | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase kaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Williams, D.R, Pattanayek, S, Xu, Y, Mori, T, Johnson, C.H, Stewart, P.L, Egli, M. | | Deposit date: | 2006-03-10 | | Release date: | 2007-01-23 | | Last modified: | 2024-10-09 | | Method: | X-RAY DIFFRACTION (2.8 Å) | | Cite: | Analysis of KaiA-KaiC protein interactions in the cyano-bacterial circadian clock using hybrid structural methods.
Embo J., 25, 2006
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4G86
 | | Crystal structure of the redox-active cofactor DBMIB bound to the full length circadian clock protein KaiA from Synechococcus elongatus | | Descriptor: | 2,5-DIBROMO-3-ISOPROPYL-6-METHYLBENZO-1,4-QUINONE, Circadian clock protein kaiA, GLYCEROL, ... | | Authors: | Pattanayek, R, Egli, M. | | Deposit date: | 2012-07-21 | | Release date: | 2012-10-24 | | Last modified: | 2024-02-28 | | Method: | X-RAY DIFFRACTION (2.387 Å) | | Cite: | Crystal Structure of the Redox-Active Cofactor Dibromothymoquinone Bound to Circadian Clock Protein KaiA and Structural Basis for Dibromothymoquinone's Ability to Prevent Stimulation of KaiC Phosphorylation by KaiA.
Biochemistry, 51, 2012
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3JZM
 | | Crystal structure of the phosphorylation-site mutant T432A of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase kaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-23 | | Release date: | 2010-03-31 | | Last modified: | 2024-10-30 | | Method: | X-RAY DIFFRACTION (2.9 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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3K09
 | | Crystal structure of the phosphorylation-site mutant S431D of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase kaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-24 | | Release date: | 2010-03-31 | | Last modified: | 2024-11-06 | | Method: | X-RAY DIFFRACTION (3.2 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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3K0F
 | | Crystal structure of the phosphorylation-site double mutant T426A/T432A of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-24 | | Release date: | 2010-03-31 | | Last modified: | 2024-11-20 | | Method: | X-RAY DIFFRACTION (3 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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3K0C
 | | Crystal structure of the phosphorylation-site double mutant S431A/T432E of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-24 | | Release date: | 2010-03-31 | | Last modified: | 2024-11-27 | | Method: | X-RAY DIFFRACTION (3.3 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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3K0A
 | | Crystal structure of the phosphorylation-site mutant S431A of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Egli, M, Pattanayek, S. | | Deposit date: | 2009-09-24 | | Release date: | 2010-03-31 | | Last modified: | 2024-11-06 | | Method: | X-RAY DIFFRACTION (3 Å) | | Cite: | Structures of KaiC Circadian Clock Mutant Proteins: A New Phosphorylation Site at T426 and Mechanisms of Kinase, ATPase and Phosphatase.
Plos One, 4, 2009
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8JON
 | | Structure of a synthetic circadian clock protein KaiC mutant of cyanobacteria Synechococcus elongatus PCC 7942 | | Descriptor: | ADENOSINE-5'-DIPHOSPHATE, ADENOSINE-5'-TRIPHOSPHATE, Circadian clock oscillator protein KaiC, ... | | Authors: | Jia, X, Zhang, Q, Li, S, Guo, J. | | Deposit date: | 2023-06-07 | | Release date: | 2024-06-12 | | Last modified: | 2025-12-31 | | Method: | ELECTRON MICROSCOPY (2.51 Å) | | Cite: | Reconstruction of the ancient cyanobacterial proto-circadian clock system KaiABC.
Embo J., 44, 2025
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7DYK
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7DYI
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7DYJ
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7DXQ
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7DY2
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7WDC
 | | Crystal Structure of Cyanobacterial Circadian Clock Protein KaiC | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION | | Authors: | Furuike, Y, Akiyama, S. | | Deposit date: | 2021-12-21 | | Release date: | 2022-07-20 | | Last modified: | 2023-11-29 | | Method: | X-RAY DIFFRACTION (2.84 Å) | | Cite: | Highly sensitive tryptophan fluorescence probe for detecting rhythmic conformational changes of KaiC in the cyanobacterial circadian clock system.
Biochem.J., 479, 2022
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7V3X
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5N8Y
 | | KaiCBA circadian clock backbone model based on a Cryo-EM density | | Descriptor: | Circadian clock protein KaiA, Circadian clock protein KaiB, Circadian clock protein kinase KaiC | | Authors: | Schuller, J.M, Snijder, J, Loessl, P, Heck, A.J.R, Foerster, F. | | Deposit date: | 2017-02-24 | | Release date: | 2017-03-29 | | Last modified: | 2024-05-15 | | Method: | ELECTRON MICROSCOPY (4.7 Å) | | Cite: | Structures of the cyanobacterial circadian oscillator frozen in a fully assembled state.
Science, 355, 2017
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4KSO
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3DVL
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4DUG
 | | Crystal Structure of Circadian Clock Protein KaiC E318A Mutant | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase kaiC, MAGNESIUM ION, ... | | Authors: | Egli, M, Mori, T, Pattanayek, R, Xu, Y, Qin, X, Johnson, C.H. | | Deposit date: | 2012-02-21 | | Release date: | 2012-03-14 | | Last modified: | 2024-11-27 | | Method: | X-RAY DIFFRACTION (3.292 Å) | | Cite: | Dephosphorylation of the Core Clock Protein KaiC in the Cyanobacterial KaiABC Circadian Oscillator Proceeds via an ATP Synthase Mechanism.
Biochemistry, 51, 2012
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3S1A
 | | Crystal structure of the phosphorylation-site double mutant S431E/T432E of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase kaiC, MAGNESIUM ION | | Authors: | Pattanayek, R, Williams, D.W, Rossi, G, Weigand, S, Mori, T, Johnson, C.H, Stewart, P.L, Egli, M. | | Deposit date: | 2011-05-14 | | Release date: | 2011-09-21 | | Last modified: | 2024-10-09 | | Method: | X-RAY DIFFRACTION (3 Å) | | Cite: | Combined SAXS/EM Based Models of the S. elongatus Post-Translational Circadian Oscillator and its Interactions with the Output His-Kinase SasA.
Plos One, 6, 2011
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4IJM
 | | Crystal structure of circadian clock protein KaiC A422V mutant | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock protein kinase KaiC, MAGNESIUM ION, ... | | Authors: | Egli, M, Pattanayek, R. | | Deposit date: | 2012-12-21 | | Release date: | 2013-02-13 | | Last modified: | 2024-11-20 | | Method: | X-RAY DIFFRACTION (3.352 Å) | | Cite: | Loop-Loop Interactions Regulate KaiA-Stimulated KaiC Phosphorylation in the Cyanobacterial KaiABC Circadian Clock.
Biochemistry, 52, 2013
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7X1Z
 | | Structure of the phosphorylation-site double mutant S431E/T432E of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock oscillator protein KaiC, MAGNESIUM ION | | Authors: | Han, X, Zhang, D.L, Hong, L, Yu, D.Q, Wu, Z.L, Yang, T, Rust, M.J, Tu, Y.H, Ouyang, Q. | | Deposit date: | 2022-02-25 | | Release date: | 2023-04-19 | | Last modified: | 2025-06-18 | | Method: | ELECTRON MICROSCOPY (3.3 Å) | | Cite: | Determining subunit-subunit interaction from statistics of cryo-EM images: observation of nearest-neighbor coupling in a circadian clock protein complex
Nat Commun, 14, 2023
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7X1Y
 | | Structure of the phosphorylation-site double mutant S431A/T432A of the KaiC circadian clock protein | | Descriptor: | ADENOSINE-5'-TRIPHOSPHATE, Circadian clock oscillator protein KaiC, MAGNESIUM ION | | Authors: | Han, X, Zhang, D.L, Hong, L, Yu, D.Q, Wu, Z.L, Yang, T, Rust, M.J, Tu, Y.H, Ouyang, Q. | | Deposit date: | 2022-02-25 | | Release date: | 2023-04-26 | | Last modified: | 2025-06-25 | | Method: | ELECTRON MICROSCOPY (3.3 Å) | | Cite: | Determining subunit-subunit interaction from statistics of cryo-EM images: observation of nearest-neighbor coupling in a circadian clock protein complex
Nat Commun, 14, 2023
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