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Article

Phenotypic Assessment Suggests Multiple Start Codons for HetN, an Inhibitor of Heterocyst Differentiation, in Anabaena sp. Strain PCC 7120.

Journal of bacteriology - 15 Aug 2018

Rivers Orion S, Beurmann Silvia, Dow Allexa, Cozy Loralyn M, Videau Patrick

Abstract excerpt

Multicellular organisms must carefully regulate the timing, number, and location of specialized cellular development. In the filamentous cyanobacterium Anabaena sp. strain PCC 7120, nitrogen-fixing heterocysts are interspersed between vegetative cells in a periodic pattern to achieve an optimal exchange of bioavailable nitrogen and reduced carbon. The spacing between heterocysts is regulated by the activity of...

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Identifiers

PMID: 29784882
DOI: 10.1128/JB.00220-18
PMCID: PMC6060353

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Phenotypic Assessment Suggests Multiple Start Codons for HetN, an Inhibitor of Heterocyst Differentiation, in Anabaena sp. Strain PCC 7120.PMID 29784882Read ↗

Biased inheritance of the protein PatN frees vegetative cells to initiate patterned heterocyst differentiation.Semantic proximity Read ↗

Functional Overlap of hetP and hetZ in Regulation of Heterocyst Differentiation in Anabaena sp. Strain PCC 7120.Semantic proximity Read ↗

A gene cluster that regulates both heterocyst differentiation and pattern formation in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Mutation of sepJ reduces the intercellular signal range of a hetN-dependent paracrine signal, but not of a patS-dependent signal, in the filamentous cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

PatS and products of nitrogen fixation control heterocyst pattern.Semantic proximity Read ↗

Mutagenesis of hetR reveals amino acids necessary for HetR function in the heterocystous cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Epistasis analysis of four genes from Anabaena sp. strain PCC 7120 suggests a connection between PatA and PatS in heterocyst pattern formation.Semantic proximity Read ↗

HetF and PatA control levels of HetR in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Different functions of HetR, a master regulator of heterocyst differentiation in Anabaena sp. PCC 7120, can be separated by mutation.Semantic proximity Read ↗

Characterization of HetN, a protein involved in heterocyst differentiation in the cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Heterocyst-specific expression of patB, a gene required for nitrogen fixation in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

The hetF gene product is essential to heterocyst differentiation and affects HetR function in the cyanobacterium Nostoc punctiforme.Semantic proximity Read ↗

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