Evidence map›Paper›PMID 23204464›Full record

ArticleJournal of bacteriology2013

Quinolinate salvage and insights for targeting NAD biosynthesis in group A streptococci.

Leonardo Sorci, Ian K Blaby, Irina A Rodionova, Jessica De Ingeniis, Sergey Tkachenko, Valérie de Crécy-Lagard, Andrei L Osterman

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

  1. Nutrient control enables metabolic reconstruction ofbioRxiv : the preprint server for biology · 2026
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  11. A Key Enzyme of the NADJournal of bacteriology · 2017
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  17. Review
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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

7 authors at 1 institution in 1 country.

Leonardo SorciSanford-Burnham Medical Research Institute, La Jolla, CA, USA.
Ian K Blaby
Irina A Rodionova
Jessica De Ingeniis
Sergey Tkachenko
Valérie de Crécy-Lagard
Andrei L Osterman
Sanford Burnham Prebys Medical Discovery Institute · US

Funding

Genomics of Coenzyme Metabolism in Bacterial PathogensR01AI066244 · NIAID · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI OSTERMAN, ANDREI L · 2007 to 2010
$1.6M
Inhibitors of Staphylococcus aureus NaMN adenylyltransferase NadDR03MH095597 · NIMH · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI OSTERMAN, ANDREI L · 2012 to 2013
$96k
NIAID NIH HHS R01 AI066244NIMH NIH HHS 1R03MH095597NIMH NIH HHS R03 MH095597
6 · The paper itself

Abstract

The essential coenzyme NAD plays important roles in metabolic reactions and cell regulation in all organisms. As such, NAD synthesis has been investigated as a source for novel antibacterial targets. Cross-species genomics-based reconstructions of NAD metabolism in group A streptococci (GAS), combined with focused experimental testing in Streptococcus pyogenes, led to a better understanding of NAD metabolism in the pathogen. The predicted niacin auxotrophy was experimentally verified, as well as the essential role of the nicotinamidase PncA in the utilization of nicotinamide (Nm). PncA is dispensable in the presence of nicotinate (Na), ruling it out as a viable antibacterial target. The function of the "orphan" NadC enzyme, which is uniquely present in all GAS species despite the absence of other genes of NAD de novo synthesis, was elucidated. Indeed, the quinolinate (Qa) phosphoribosyltransferase activity of NadC from S. pyogenes allows the organism to sustain growth when Qa is present as a sole pyridine precursor. Finally, the redundancy of functional upstream salvage pathways in GAS species narrows the choice of potential drug targets to the two indispensable downstream enzymes of NAD synthesis, nicotinate adenylyltransferase (NadD family) and NAD synthetase (NadE family). Biochemical characterization of NadD confirmed its functional role in S. pyogenes, and its potential as an antibacterial target was supported by inhibition studies with previously identified class I inhibitors of the NadD enzyme family. One of these inhibitors efficiently inhibited S. pyogenes NadD (sp.NadD) in vitro (50% inhibitory concentration [IC(50)], 15 μM), exhibiting a noncompetitive mechanism with a K(i) of 8 μM.

Indexed as

Amide SynthasesBacterial ProteinsCloning, MolecularGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicMutationNADNiacinNicotinamide-Nucleotide AdenylyltransferaseQuinolinic AcidStreptococcus pyogenesAmide SynthasesBacterial ProteinsNADNAD+ synthaseNiacinNicotinamide-Nucleotide Adenylyltransferasenicotinic acid mononucleotide adenylyltransferaseQuinolinic Acid

Identifiers

PMID23204464
PMCPMC3562111
OpenAlexW2154943744

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.