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Article

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

Proceedings of the National Academy of Sciences of the United States of America - 9 Nov 2004

Khudyakov Ivan Y, Golden James W

Abstract excerpt

The HetR protein has long been recognized as a key player in the regulation of heterocyst development. HetR is known to possess autoproteolytic and DNA-binding activities. During a search for mutants of Anabaena sp. PCC 7120 that can overcome heterocyst suppression caused by overexpression of the patS gene, which encodes a negative regulator of differentiation, a bypass mutant strain, S2-45, was isolated that...

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Identifiers

PMID: 15520378
DOI: 10.1073/pnas.0405572101
PMCID: PMC528747

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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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Different functions of HetR, a master regulator of heterocyst differentiation in Anabaena sp. PCC 7120, can be separated by mutation.PMID 15520378Read ↗

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

Functional Overlap of hetP and hetZ in Regulation of Heterocyst Differentiation in 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 ↗

Identification of a gene regulated by HetR, a master regulator of heterocyst differentiation, in the non-heterocyst-forming filamentous cyanobacterium Arthrospira platensis NIES-39.Semantic proximity Read ↗

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

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

Differential binding between PatS C-terminal peptide fragments and HetR from Anabaena sp. 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 ↗

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

NtcA-regulated heterocyst differentiation genes hetC and devB from Anabaena sp. strain PCC 7120 exhibit a similar tandem promoter arrangement.Semantic proximity Read ↗

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