Evidence map›Paper›PMID 14532088›Full record

ArticleApplied and environmental microbiology2003

A novel extracellular multicopper oxidase from Phanerochaete chrysosporium with ferroxidase activity.

Luis F Larrondo, Loreto Salas, Francisco Melo, Rafael Vicuña, Daniel Cullen

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
9.6field-weighted citation impact, top 2% 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

30 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Multicopper Oxidases inJournal of fungi (Basel, Switzerland) · 2020
    Review
  9. Article
  10. Whole-GenomeGenome announcements · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Cloning, characterization and expression of a novel laccase gene Pclac2 from Phytophthora capsici.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2014
    Article
  16. Article
  17. Article
  18. Article
  19. Directed evolution of copper nitrite reductase to a chromogenic reductant.Protein engineering, design & selection : PEDS · 2010
    Article
  20. Laccases: a never-ending story.Cellular and molecular life sciences : CMLS · 2010
    Review
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 at 2 institutions in 2 countries.

Luis F LarrondoDepartamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
Loreto Salas
Francisco Melo
Rafael Vicuña
Daniel Cullen
Pontificia Universidad Católica de Chile · CLForest Products Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lignin degradation by the white rot basidiomycete Phanerochaete chrysosporium involves various extracellular oxidative enzymes, including lignin peroxidase, manganese peroxidase, and a peroxide-generating enzyme, glyoxal oxidase. Recent studies have suggested that laccases also may be produced by this fungus, but these conclusions have been controversial. We identified four sequences related to laccases and ferroxidases (Fet3) in a search of the publicly available P. chrysosporium database. One gene, designated mco1, has a typical eukaryotic secretion signal and is transcribed in defined media and in colonized wood. Structural analysis and multiple alignments identified residues common to laccase and Fet3 sequences. A recombinant MCO1 (rMCO1) protein expressed in Aspergillus nidulans had a molecular mass of 78 kDa, as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and the copper I-type center was confirmed by the UV-visible spectrum. rMCO1 oxidized various compounds, including 2,2'-azino(bis-3-ethylbenzthiazoline-6-sulfonate) (ABTS) and aromatic amines, although phenolic compounds were poor substrates. The best substrate was Fe2+, with a Km close to 2 micro M. Collectively, these results suggest that the P. chrysosporium genome does not encode a typical laccase but rather encodes a unique extracellular multicopper oxidase with strong ferroxidase activity.

Indexed as

OxidoreductasesAmino Acid SequenceCeruloplasminModels, MolecularMolecular Sequence DataPhanerochaeteSequence AlignmentSequence Analysis, DNASubstrate SpecificityCeruloplasmincopper oxidaseOxidoreductases

Identifiers

PMID14532088
PMCPMC201228
OpenAlexW2112819377

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.