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Article

TonB and the gram-negative dilemma.

Molecular microbiology - 1 Dec 1990

Postle K

Abstract excerpt

TonB protein serves as an energy transducer to couple cytoplasmic membrane energy to high-affinity active transport of iron siderophores and vitamin B12 across the outer membranes of Gram-negative bacteria. The biochemical mechanism of the energy transduction remains to be determined, but important details are already known. TonB is targeted to and anchored in the cytoplasmic membrane by a single...

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Source

Identifiers

PMID: 2150975
DOI: 10.1111/j.1365-2958.1990.tb00561.x

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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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Research trail→

Click a neighbor to travelStep 1 · 12 closest

TonB and the gram-negative dilemma.PMID 2150975Read ↗

Characterization of the exbBD operon of Escherichia coli and the role of ExbB and ExbD in TonB function and stability.Semantic proximity Read ↗

Energy transduction between membranes. TonB, a cytoplasmic membrane protein, can be chemically cross-linked in vivo to the outer membrane receptor FepA.Semantic proximity Read ↗

Regions of Escherichia coli TonB and FepA proteins essential for in vivo physical interactions.Semantic proximity Read ↗

TonB system, in vivo assays and characterization.Semantic proximity Read ↗

Monomeric TonB and the Ton box are required for the formation of a high-affinity transporter-TonB complex.Semantic proximity Read ↗

Mutations in the ExbB cytoplasmic carboxy terminus prevent energy-dependent interaction between the TonB and ExbD periplasmic domains.Semantic proximity Read ↗

Transport of iron across the outer membrane.Semantic proximity Read ↗

A conserved electron transport chain sensitizes Bacteroides to a pore-forming type VI secretion toxinSemantic proximity Read ↗

The Role of TonB Gene in Edwardsiella ictaluri VirulenceSemantic proximity Read ↗

Functional Diversity of TonB-Like Proteins in the Heterocyst-Forming Cyanobacterium Anabaena sp. PCC 7120.Semantic proximity Read ↗

Structure, Function, and Evolution of Bacterial ATP-Binding Cassette SystemsSemantic proximity Read ↗

BtuB TonB-dependent transporters and BtuG surface lipoproteins form stable complexes for vitamin B12 uptake in gut BacteroidesSemantic proximity Read ↗

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