Evidence map›Paper›PMID 20484676›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Heme biosynthesis is coupled to electron transport chains for energy generation.

Kalle Möbius, Rodrigo Arias-Cartin, Daniela Breckau, Anna-Lena Hännig, Katrin Riedmann, Rebekka Biedendieck, Susanne Schröder, Dörte Becher, Axel Magalon, Jürgen Moser and 2 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

52 citing papers in PubMed, 109 citations in OpenAlex.

  1. Review
  2. Review
  3. Ecological plasticity ofMicrobiology spectrum · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Role of themBio · 2023
    Article
  13. Microbial Synthesis of HemeMolecules (Basel, Switzerland) · 2023
    Review
  14. InFrontiers in genetics · 2023
    Article
  15. Heme Oxygenase 1 in Vertebrates: Friend and Foe.Cell biochemistry and biophysics · 2022
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

12 authors at 5 institutions in 2 countries.

Kalle MöbiusInstitute of Microbiology, University Braunschweig, Brunswick, Germany.
Rodrigo Arias-Cartin
Daniela Breckau
Anna-Lena Hännig
Katrin Riedmann
Rebekka Biedendieck
Susanne Schröder
Dörte Becher
Axel Magalon
Jürgen Moser
Martina Jahn
Dieter Jahn
Technische Universität Braunschweig · DEInstitut de Microbiologie de la Méditerranée · FRJohann Heinrich von Thünen-Institut · DELaboratoire de Chimie Bactérienne · FRUniversität Greifswald · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cellular energy generation uses membrane-localized electron transfer chains for ATP synthesis. Formed ATP in turn is consumed for the biosynthesis of cellular building blocks. In contrast, heme cofactor biosynthesis was found driving ATP generation via electron transport after initial ATP consumption. The FMN enzyme protoporphyrinogen IX oxidase (HemG) of Escherichia coli abstracts six electrons from its substrate and transfers them via ubiquinone, cytochrome bo(3) (Cyo) and cytochrome bd (Cyd) oxidase to oxygen. Under anaerobic conditions electrons are transferred via menaquinone, fumarate (Frd) and nitrate reductase (Nar). Cyo, Cyd and Nar contribute to the proton motive force that drives ATP formation. Four electron transport chains from HemG via diverse quinones to Cyo, Cyd, Nar, and Frd were reconstituted in vitro from purified components. Characterization of E. coli mutants deficient in nar, frd, cyo, cyd provided in vivo evidence for a detailed model of heme biosynthesis coupled energy generation.

Indexed as

BiocatalysisCytochrome b GroupElectron TransportEscherichia coliEscherichia coli ProteinsFlavinsHemeModels, MolecularMutationNitrate ReductaseProtein Structure, TertiaryProtoporphyrinogen OxidaseCytochrome b GroupEscherichia coli ProteinsFlavinsHemeHemG protein, E coliNitrate ReductaseProtoporphyrinogen Oxidase

Identifiers

PMID20484676
PMCPMC2890856
OpenAlexW2025116679

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.