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Article

Intramolecular regulation of phosphorylation status of the circadian clock protein KaiC.

PloS one - 25 Nov 2009

Xu Yao, Mori Tetsuya, Qin Ximing, Yan Heping, Egli Martin, Johnson Carl Hirschie

Abstract excerpt

BACKGROUND: KaiC, a central clock protein in cyanobacteria, undergoes circadian oscillations between hypophosphorylated and hyperphosphorylated forms in vivo and in vitro. Structural analyses of KaiC crystals have identified threonine and serine residues in KaiC at three residues (T426, S431, and T432) as potential sites at which KaiC is phosphorylated; mutation of any of these three sites to alanine abolishes...

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Source

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Identifiers

PMID: 19946629
DOI: 10.1371/journal.pone.0007509
PMCID: PMC2778140

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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