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Article

Partial suppression of an Escherichia coli TonB transmembrane domain mutation (delta V17) by a missense mutation in ExbB.

Molecular microbiology - 1 Aug 1994

Larsen R A, Thomas M G, Wood G E, Postle K

Abstract excerpt

Active transport of vitamin B12 and Fe(III)-siderophore complexes across the outer membrane of Escherichia coli appears to be dependent upon the ability of the TonB protein to couple cytoplasmic membrane-generated protonmotive force to outer membrane receptors. TonB is supported in this role by an auxiliary protein, ExbB, which, in addition to stabilizing TonB against the activities of endogenous envelope...

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Identifiers

PMID: 7997175
DOI: 10.1111/j.1365-2958.1994.tb00457.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.

Related research

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Research trail→

Click a neighbor to travelStep 1 · 12 closest

Partial suppression of an Escherichia coli TonB transmembrane domain mutation (delta V17) by a missense mutation in ExbB.PMID 7997175Read ↗

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

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

His(20) provides the sole functionally significant side chain in the essential TonB transmembrane domain.Semantic proximity Read ↗

Secretion of a bacterial virulence factor is driven by the folding of a C-terminal segment.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 ↗

Sequence changes in the ton box region of BtuB affect its transport activities and interaction with TonB protein.Semantic proximity Read ↗

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

Vectorial transport and folding of an autotransporter virulence protein during outer membrane secretion.Semantic proximity Read ↗

Genetic suppression demonstrates interaction of TonB protein with outer membrane transport proteins in Escherichia coli.Semantic proximity Read ↗

The presence of a helix breaker in the hydrophobic core of signal sequences of secretory proteins prevents recognition by the signal-recognition particle in Escherichia coli.Semantic proximity Read ↗

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

Molecular characterization of the Enterobacter aerogenes tonB gene: identification of a novel type of tonB box suppressor mutant.Semantic proximity Read ↗

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