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Article

Septum-localized protein required for filament integrity and diazotrophy in the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120.

Journal of bacteriology - 1 May 2007

Flores Enrique, Pernil Rafael, Muro-Pastor Alicia M, Mariscal Vicente, Maldener Iris, Lechno-Yossef Sigal, Fan Qing, Wolk C Peter, Herrero Antonia

Abstract excerpt

Heterocysts, formed when filamentous cyanobacteria, such as Anabaena sp. strain PCC 7120, are grown in the absence of combined nitrogen, are cells that are specialized in fixing atmospheric nitrogen (N(2)) under oxic conditions and that transfer fixed nitrogen to the vegetative cells of the filament. Anabaena sp. mutants whose sepJ gene (open reading frame alr2338 of the Anabaena sp. genome) was affected showed...

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PMID: 17369306
DOI: 10.1128/JB.00085-07
PMCID: PMC1913322

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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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Septum-localized protein required for filament integrity and diazotrophy in the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120.PMID 17369306Read ↗

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A short-filament mutant of Anabaena sp. strain PCC 7120 that fragments in nitrogen-deficient medium.Semantic proximity Read ↗

Specific Glucoside Transporters Influence Septal Structure and Function in the Filamentous, Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120.Semantic proximity Read ↗

Requirement of Fra proteins for communication channels between cells in the filamentous nitrogen-fixing cyanobacterium Anabaena sp. PCC 7120.Semantic proximity Read ↗

A TolC-like protein is required for heterocyst development in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Anabaena sp. strain PCC 7120 conR contains a LytR-CpsA-Psr domain, is developmentally regulated, and is essential for diazotrophic growth and heterocyst morphogenesis.Semantic proximity Read ↗

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The Anabaena sp. strain PCC 7120 asr1734 gene encodes a negative regulator of heterocyst development.Semantic proximity Read ↗

ppGpp metabolism is involved in heterocyst development in the cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

ABC-type neutral amino acid permease N-I is required for optimal diazotrophic growth and is repressed in the heterocysts of Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

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