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Article

Importance of the cyanobacterial Gun4 protein for chlorophyll metabolism and assembly of photosynthetic complexes.

The Journal of biological chemistry - 19 Sept 2008

Sobotka Roman, Dühring Ulf, Komenda Josef, Peter Enrico, Gardian Zdenko, Tichy Martin, Grimm Bernhard, Wilde Annegret

Abstract excerpt

Gun4 is a porphyrin-binding protein that activates magnesium chelatase, a multimeric enzyme catalyzing the first committed step in chlorophyll biosynthesis. In plants, GUN4 has been implicated in plastid-to-nucleus retrograde signaling processes that coordinate both photosystem II and photosystem I nuclear gene expression with chloroplast function. In this work we present the functional analysis of Gun4 from the...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Source

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Identifiers

PMID: 18625715
DOI: 10.1074/jbc.M803787200
PMCID: PMC3258849

Provenance

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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Importance of the cyanobacterial Gun4 protein for chlorophyll metabolism and assembly of photosynthetic complexes.PMID 18625715Read ↗

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Porphyrin Binding to Gun4 Protein, Facilitated by a Flexible Loop, Controls Metabolite Flow through the Chlorophyll Biosynthetic Pathway.Semantic proximity Read ↗

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GUN1 Controls Accumulation of the Plastid Ribosomal Protein S1 at the Protein Level and Interacts with Proteins Involved in Plastid Protein Homeostasis.Semantic proximity Read ↗

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