Evidence map›Paper›PMID 9829959›Full record

ArticleJournal of bacteriology1998

secG and temperature modulate expression of azide-resistant and signal sequence suppressor phenotypes of Escherichia coli secA mutants.

V Ramamurthy, V Dapíc, D Oliver

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

V RamamurthyDepartment of Molecular Biology and Biochemistry, Wesleyan University, Middletown, Connecticut 06459, USA.
V Dapíc
D Oliver
Wesleyan University · US

Funding

Mechanism of Protein Localization in Eschericia coliR01GM042033 · NIGMS · WESLEYAN UNIVERSITY · PI OLIVER, DONALD B. · 1989 to 2010
$3.4M
NIGMS NIH HHS GM42033NIGMS NIH HHS R01 GM042033
6 · The paper itself

Abstract

SecA is a dynamic protein that undergoes ATP-dependent membrane cycling to drive protein translocation across the Escherichia coli inner membrane. To understand more about this process, azide-resistant (azi) and signal sequence suppressor (prlD) alleles of secA were studied. We found that azide resistance is cold sensitive because of a direct effect on protein export, suggesting that SecA-membrane interaction is regulated by an endothermic step that is azide inhibitable. secG function is required for expression of azide-resistant and signal sequence suppressor activities of azi and prlD alleles, and in turn, these alleles suppress cold-sensitive and export-defective phenotypes of a secG null mutant. These remarkable genetic observations support biochemical data indicating that SecG promotes SecA membrane cycling and that this process is dependent on an endothermic change in SecA conformation.

Indexed as

Escherichia coli ProteinsMembrane Transport ProteinsAdenosine TriphosphatasesAllelesAzidesBacterial ProteinsBiological Transport, ActiveCold TemperatureDrug Resistance, MicrobialEscherichia coliGene DeletionGenes, BacterialMembrane ProteinsMutationPhenotypeProtein ConformationAdenosine TriphosphatasesAzidesBacterial ProteinsEscherichia coli ProteinsMembrane ProteinsMembrane Transport ProteinsProtein Sorting SignalsSecA ProteinsSecG protein, E coliSEC Translocation Channels

Identifiers

PMID9829959
PMCPMC107736
OpenAlexW1891954034

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.