Anabaena circadian clock proteins KaiA and KaiB reveal a potential common binding site to their partner KaiC
Garces, R.G., Wu, N., Gillon, W., Pai, E.F.(2004) EMBO J 23: 1688-1698
- PubMed: 15071498 
- DOI: 10.1038/sj.emboj.7600190
- Primary Citation of Related Structures:  
1R5P, 1R5Q - PubMed Abstract: 
The cyanobacterial clock proteins KaiA and KaiB are proposed as regulators of the circadian rhythm in cyanobacteria. Mutations in both proteins have been reported to alter or abolish circadian rhythmicity. Here, we present molecular models of both KaiA and KaiB from the cyanobacteria Anabaena sp PCC7120 deduced by crystal structure analysis, and we discuss how clock-changing or abolishing mutations may cause their resulting circadian phenotype ...