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The chlorophyll-binding protein IsiA is inducible by high light and protects the cyanobacterium Synechocystis PCC6803 from photooxidative stress.

FEBS letters - 25 Apr 2005

Havaux Michel, Guedeney Geneviève, Hagemann Martin, Yeremenko Nataliya, Matthijs Hans C P, Jeanjean Robert

Abstract excerpt

The products of the isiAB operon are a chlorophyll antenna protein (IsiA) and flavodoxin (IsiB), which accumulate in cyanobacteria grown under iron starvation conditions. Here we show that strong light triggers de-repression of isiAB transcription and leads to IsiA and flavodoxin accumulation under iron replete conditions. Genetic deletion of isiAB resulted in a photosensitive phenotype, with accumulation of...

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PMID: 15848160
DOI: 10.1016/j.febslet.2005.03.021

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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The chlorophyll-binding protein IsiA is inducible by high light and protects the cyanobacterium Synechocystis PCC6803 from photooxidative stress.PMID 15848160Read ↗

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