Evidence map›Paper›PMID 19139094›Full record

ArticleThe Journal of biological chemistry2009

Fre Is the Major Flavin Reductase Supporting Bioluminescence from Vibrio harveyi Luciferase in Escherichia coli.

Zachary T Campbell, Thomas O Baldwin

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. 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
1.6field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Structure and Function of the α-Hydroxylation Bimodule of the Mupirocin Polyketide Synthase.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Molecular Mechanisms of Bacterial Bioluminescence.Computational and structural biotechnology journal · 2018
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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 1 institution in 1 country.

Zachary T CampbellDepartment of Biochemistry and Molecular Biophysics, University of Arizona, Tucson, Arizona 85721-0088.
Thomas O Baldwin
University of Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Unlike the vast majority of flavoenzymes, bacterial luciferase requires an exogenous source of reduced flavin mononucleotide for bioluminescence activity. Within bioluminescent bacterial cells, species-specific oxidoreductases are believed to provide reduced flavin for luciferase activity. The source of reduced flavin in Escherichia coli-expressing bioluminescence is not known. There are two candidate proteins potentially involved in this process in E. coli, a homolog of the Vibrio harveyi Frp oxidoreductase, NfsA, and a luxG type oxidoreductase, Fre. Using single gene knock-out strains, we show that deletion of fre decreased light output by greater than two orders of magnitude, yet had no effect on luciferase expression in E. coli. Purified Fre is capable of supporting bioluminescence in vitro with activity comparable to that with the endogenous V. harveyi reductase (Frp), using either FMN or riboflavin as substrate. In a pull-down experiment, we found that neither Fre nor Frp co-purify with luciferase. In contrast to prior work, we find no evidence for stable complex formation between luciferase and oxidoreductase. We conclude that in E. coli, an enzyme primarily responsible for riboflavin reduction (Fre) can also be utilized to support high levels of bioluminescence.

Indexed as

Bacterial ProteinsEscherichia coliEscherichia coli ProteinsFMN ReductaseLuciferases, BacterialLuminescenceNitroreductasesOxidoreductasesRecombinant ProteinsVibrioBacterial ProteinsEscherichia coli ProteinsFMN ReductaseFre protein, E coliLuciferases, BacterialluxG protein, BacteriaNfsA protein, E coliNitroreductasesOxidoreductasesRecombinant Proteins

Identifiers

PMID19139094
PMCPMC2659190
OpenAlexW1974294025

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.