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Article

Effects of PatU3 Peptides on Cell Size and Heterocyst Frequency of Anabaena sp. Strain PCC 7120.

Journal of bacteriology - 8 Jun 2021

Li Chao, Zhang He, Du Yaru, Zhang Wei, Xu Xudong

Abstract excerpt

patU, one of the genes specifically found in filamentous cyanobacteria, is required for the pattern formation in heterocyst-forming species. In Anabaena sp. strain PCC 7120, patU is split into patU5 and patU3, and only patU3 is involved in heterocyst patterning. Here, we report that PatU3 is also involved in control of cell size. A patU3 deletion mutant showed remarkably smaller cell size and much higher...

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Identifiers

PMID: 33846118
DOI: 10.1128/JB.00108-21
PMCID: PMC8315979

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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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Effects of PatU3 Peptides on Cell Size and Heterocyst Frequency of Anabaena sp. Strain PCC 7120.PMID 33846118Read ↗

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

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

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

Mutations in genes patA and patL of Anabaena sp. strain PCC 7120 result in similar phenotypes, and the proteins encoded by those genes may interact.Semantic proximity Read ↗

A third genetic locus required for the formation of heterocysts in 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 ↗

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

Heterocyst differentiation: from single mutants to global approaches.Semantic proximity Read ↗

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