Evidence map›Paper›PMID 15561822›Full record

ArticleAntimicrobial agents and chemotherapy2004

PnuC and the utilization of the nicotinamide riboside analog 3-aminopyridine in Haemophilus influenzae.

Elizabeta Sauer, Melisa Merdanovic, Anne Price Mortimer, Gerhard Bringmann, Joachim Reidl

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Virulence and genome analysis of three historicalFrontiers in cellular and infection microbiology · 2025
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  10. Structural and Functional Characterization of NadR fromMolecules (Basel, Switzerland) · 2020
    Article
  11. Niacin-mediated Gene Expression and Role of NiaR as a Transcriptional Repressor ofFrontiers in cellular and infection microbiology · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
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  19. 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

5 authors.

Elizabeta SauerInstitut für Hygiene und Mikrobiologie, Universität Würzburg, Würzburg, Germany.
Melisa Merdanovic
Anne Price Mortimer
Gerhard Bringmann
Joachim Reidl

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The utilization pathway for the uptake of NAD and nicotinamide riboside was previously characterized for Haemophilus influenzae. We now report on the cellular location, topology, and substrate specificity of PnuC. pnuC of H. influenzae is only distantly related to pnuC of Escherichia coli and Salmonella enterica serovar Typhimurium. When E. coli PnuC was expressed in an H. influenzae pnuC mutant, it was able to take up only nicotinamide riboside and not nicotinamide mononucleotide. Therefore, we postulated that PnuC transporters in general possess specificity for nicotinamide riboside. Earlier studies showed that 3-aminopyridine derivatives (e.g., 3-aminopyridine adenine dinucleotide) are inhibitory for H. influenzae growth. By testing characterized strains with mutations in the NAD utilization pathway, we show that 3-aminopyridine riboside is inhibitory to H. influenzae and is taken up by the NAD-processing and nicotinamide riboside route. 3-Aminopyridine riboside is utilized effectively in a pnuC+ background. In addition, we demonstrate that 3-aminopyridine adenine dinucleotide resynthesis is produced by NadR. 3-Aminopyridine riboside-resistant H. influenzae isolates were characterized, and mutations in nadR could be detected. We also tested other species of the family Pasteurellaceae, Pasteurella multocida and Actinobacillus actinomycetemcomitans, and found that 3-aminopyridine riboside does not act as a growth inhibitor; hence, 3-aminopyridine riboside represents an anti-infective agent with a very narrow host range.

Indexed as

Alkaline PhosphataseAmino Acid SequenceAminopyridinesBlotting, WesternChromatography, Thin LayerCloning, MolecularCulture MediaCyclin-Dependent KinasesDNA, BacterialDNA Mutational AnalysisDrug Resistance, BacterialEscherichia coli ProteinsGene DeletionHaemophilus influenzaeLac OperonModels, Molecular3-aminopyridineAlkaline PhosphataseAminopyridinesCulture MediaCyclin-Dependent KinasesDNA, BacterialEscherichia coli ProteinsNADphoA protein, E coli

Identifiers

PMID15561822
PMCPMC529221

What OpenQuestion holds

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Registered trials

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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.