Evidence map›Paper›PMID 21371140›Full record

ArticleMolecular microbiology2011

Making DNA without iron - induction of a manganese-dependent ribonucleotide reductase in response to iron starvation.

Simon C Andrews

Abstract readComment
PubMed Publisher
In one paragraph

Article in Molecular microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Iron Reshapes the Gut Microbiome and Host Metabolism.Journal of lipid and atherosclerosis · 2021
    Review
  5. Article
  6. Metal homeostasis and resistance in bacteria.Nature reviews. Microbiology · 2017
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Iron homeostasis in theAdvances in botanical research · 2013
    Article
  12. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Simon C AndrewsSchool of Biological Sciences, Whiteknights, University of Reading, Reading RG6 6AJ, UK. andrews@reading.ac.uk
University of Reading · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ribonucleotide reductases supply cells with their deoxyribonucleotides. Three enzyme types are known, classes I, II and III. Class II enzymes are anaerobic whereas class I enzymes are aerobic, and so class I and II enzymes are often produced by the same organism under opposing oxygen regimes. Escherichia coli contains two types of class I enzyme (Ia and Ib) with the Fe-dependent Ia enzyme (NrdAB) performing the major role aerobically, leaving the purpose of the Ib enzyme (NrdEF) unclear. Several papers have recently focused on the class Ib enzymes showing that they are Mn (rather than Fe) dependent and suggesting that the E. coli NrdEF may function under redox-stress conditions. A paper published in this issue of Molecular Microbiology from James Imlay's group confirms that this unexplained NrdEF Ib enzyme is Mn-dependent, but shows that it does not substitute for NrdAB during redox stress. Instead, a role during iron restriction is demonstrated. Thus, the purpose of NrdEF (and possibly other class Ib enzymes) is to enhance growth under aerobic, low-iron conditions, and to functionally replace the Fe-dependent NrdAB when iron is unavailable. This finding reveals a new mechanism by which bacteria adjust to life under iron deprivation.

Indexed as

AerobiosisBacterial ProteinsDeoxyribonucleotidesDNAEscherichia coliEscherichia coli ProteinsIronManganeseModels, BiologicalRibonucleoside Diphosphate ReductaseRibonucleotide ReductasesBacterial ProteinsDeoxyribonucleotidesDNAEscherichia coli ProteinsIronManganeseNrdA protein, E coliNrdE protein, E coliNrdF protein, bacteriaRibonucleoside Diphosphate ReductaseRibonucleotide Reductases

Identifiers

PMID21371140
OpenAlexW2120551697

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.