Circadian clock protein: Difference between revisions
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<StructureSection load='' size='350' side='right' caption='Circadian clock protein KaiA (PDB entry [[1r8j]])' scene='53/536683/Cv/1'> | <StructureSection load='' size='350' side='right' caption='Circadian clock protein KaiA (PDB entry [[1r8j]])' scene='53/536683/Cv/1'> | ||
'''Circadian clock proteins''' or '''Circadian clock protein kinase''' measure out the 24 hour circadian rhythm. In cyanobacteria protein KaiA<ref>PMID:15007067</ref> stimulates KaiC<ref>PMID:15304218</ref> which adds phosphate groups to itself. Then '''KaiC''' binds to '''KaiB'''<ref>PMID:15716247</ref> which inactivates '''KaiA''' and causes the number of phosphate groups on KaiC to drop slowly. KaiB disconnects allowing KaiA to start the cycle again.<ref>PMID:11687489</ref> For details of KaiC see [[Circadian Clock Protein KaiC]]. | '''Circadian clock proteins''' or '''Circadian clock protein kinase''' measure out the 24 hour circadian rhythm. In cyanobacteria protein '''KaiA'''<ref>PMID:15007067</ref> stimulates '''KaiC'''<ref>PMID:15304218</ref> which adds phosphate groups to itself. Then '''KaiC''' binds to '''KaiB'''<ref>PMID:15716247</ref> which inactivates '''KaiA''' and causes the number of phosphate groups on '''KaiC''' to drop slowly. '''KaiB''' disconnects allowing '''KaiA''' to start the cycle again.<ref>PMID:11687489</ref> For details of '''KaiC''' see [[Circadian Clock Protein KaiC]]. | ||
Circadian clock protein KaiA from ''Synechococcus elongatus'' is <scene name='53/536683/Cv/2'>homodimer</scene> (PDB entry [[1r8j]]). | Circadian clock protein KaiA from ''Synechococcus elongatus'' is <scene name='53/536683/Cv/2'>homodimer</scene> (PDB entry [[1r8j]]). | ||