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Article

Biochemical properties of CikA, an unusual phytochrome-like histidine protein kinase that resets the circadian clock in Synechococcus elongatus PCC 7942.

The Journal of biological chemistry - 23 May 2003

Mutsuda Michinori, Michel Klaus-Peter, Zhang Xiaofan, Montgomery Beronda L, Golden Susan S

Abstract excerpt

We recently described the cikA (circadian input kinase A) gene, whose product supplies environmental information to the circadian oscillator in the cyanobacterium Synechococcus elongatus PCC 7942. CikA possesses three distinct domains: a GAF, a histidine protein kinase (HPK), and a receiver domain similar to those of the response regulator family. To determine how CikA functions in providing circadian input, we...

Topics

Adenosine Triphosphate
Alleles
Bacterial Proteins
Bile Pigments
Biliverdine
Circadian Rhythm
Cyanobacteria
Escherichia coli
Gene Deletion
Gene Expression

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Histidine Kinase

Luminescent Measurements

Mutagenesis

Phosphorylation

Phycobilins

Phycocyanin

Point Mutation

Polymerase Chain Reaction

Source

Identifiers

PMID: 12626498
DOI: 10.1074/jbc.M213255200

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-12626498-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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