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Article

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

Journal of bacteriology - 1 Mar 2006

Orozco Christine C, Risser Douglas D, Callahan Sean M

Abstract excerpt

The hetR, patA, hetN, and patS genes are part of a regulatory network that regulates the differentiation and patterning of heterocysts in the filamentous cyanobacterium Anabaena sp. strain PCC 7120. In this report, the epistatic interactions of mutant alleles of these four genes have been used to refine our understanding of their relationships to one another. The hetR gene was necessary for differentiation in...

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Identifiers

PMID: 16484191
DOI: 10.1128/JB.188.5.1808-1816.2006
PMCID: PMC1426565

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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Epistasis analysis of four genes from Anabaena sp. strain PCC 7120 suggests a connection between PatA and PatS in heterocyst pattern formation.PMID 16484191Read ↗

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

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

Phenotypic Assessment Suggests Multiple Start Codons for HetN, an Inhibitor of Heterocyst Differentiation, 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 ↗

Three Substrains of the Cyanobacterium Anabaena sp. Strain PCC 7120 Display Divergence in Genomic Sequences and hetC Function.Semantic proximity Read ↗

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

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

Evidence for direct binding between HetR from Anabaena sp. PCC 7120 and PatS-5.Semantic proximity Read ↗

Mutual regulation of ntcA and hetR during heterocyst differentiation requires two similar PP2C-type protein phosphatases, PrpJ1 and PrpJ2, in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

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