Evidence map›Paper›PMID 32020910›Full record

ArticleJournal of biosciences2020

Activation of RelA by pppGpp as the basis for its differential toxicity over ppGpp in

Rajeshree Sanyal, Rajendran Harinarayanan

Abstract read
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In one paragraph

Article in Journal of biosciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 14 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

2 authors at 2 institutions in 1 country.

Rajeshree SanyalLaboratory of Bacterial Genetics, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India.
Rajendran Harinarayanan
Centre for DNA Fingerprinting and Diagnostics · INManipal Academy of Higher Education · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The nucleotide derivatives (p)ppGpp, comprising ppGpp and pppGpp, are important signalling molecules that control various facets of gene regulation and protein synthesis in Escherichia coli. Their synthesis is catalysed by RelA (in response to amino acid limitation) and by SpoT (in response to the limitation of carbon source or fatty acids). SpoT is also a hydrolase for degradation of both ppGpp and pppGpp, while GppA catalyses the conversion of pppGpp to ppGpp. Here we provide evidence to show that pppGpp exerts heightened toxicity compared to that by ppGpp. Thus, gppA spoT double mutants exhibited lethality under conditions in which the single mutants were viable. The extent of RelA-catalysed (p)ppGpp accumulation in the gppA spoT strain was substantially greater than that in its isogenic gppA

Indexed as

Escherichia coliEscherichia coli ProteinsGTP PyrophosphokinaseGuanosine PentaphosphateGuanosine TetraphosphateMutationPhenotypePlasmidsPyrophosphatasesTranscription Factor RelAEscherichia coli ProteinsGTP Pyrophosphokinaseguanosine-3',5'-bis(diphosphate) 3'-pyrophosphataseGuanosine PentaphosphateGuanosine TetraphosphatePyrophosphatasesrelA protein, E coliTranscription Factor RelA

Identifiers

PMID32020910
OpenAlexW3006098708

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.