Circadian clock protein

Circadian clock proteins measure out the 24 hour circadian rhythm. In cyanobacteria protein KaiA stimulates KaiC which adds phosphate groups to itself. Then KaiC binds to KaiB which inactivates KaiA and causes the number of phosphate groups on KaiC to drop slowly. KaiB disconnects allowing KaiA to start the cycle again. For details of KaiC see Circadian Clock Protein KaiC. Circadian clock protein KaiA from Synechococcus elongatus is (PDB entry 1r8j).

spinqualitylabelsall models Circadian clock protein KaiA (PDB entry 1r8j) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

3D Structures of circadian clock protein3D Structures of circadian clock protein

Updated on 26-November-2017

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• KaiA
  • 1r5q – NoKaiA - Nostoc
    
  • 1m2e, 1m2f – SeKaiA N terminal – Synechococcus elongatus - NMR
    
  • 1q6a, 1q6b – SeKaiA C terminal - NMR
    
  • 1v2z – SeKaiA C terminal
    
  • 1r8j – SeKaiA
    
  • 1suy, 1sv1 – SeKaiA C terminal + KaiC peptide - NMR
    
  • 5c5e – SeKaiA + KaiC peptide
    
  • 4g86 – SeKaiA + DBMIB
    
• KaiB
  • 1r5p – NoKaiB
    
  • 1wwj – SyKaiB - Synechocystis
    
  • 1vgl, 2qke, 4kso – SeKaiB
    
• KaiC
  • 1tf7, 2gbl – SyKaiC
    
  • 1u9i, 3dvl, 3jzm, 3k09, 3k0a, 3k0c, 3k0e, 3k0f, 3s1a, 4dug, 4ijm, 4o0m – SeKaiC (mutant)
    
  • 4tl6 – SeKaiC N terminal
    
  • 4tl8, 4tl7 – SeKaiC N terminal C1 domain
    
  • 4tl9, 4tla, 4tlb, 4tlc, 4tld, 4tle – SeKaiC N terminal C1 domain (mutant)