Evidence map›Paper›PMID 18978091›Full record

ArticleApplied and environmental microbiology2009

Cloning of the Trichoderma reesei cDNA encoding a glucuronan lyase belonging to a novel polysaccharide lyase family.

Naotake Konno, Kiyohiko Igarashi, Naoto Habu, Masahiro Samejima, Akira Isogai

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Journal of applied glycoscience · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Discovery of a Novel Glucuronan Lyase System inApplied and environmental microbiology · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Development of completely dispersed cellulose nanofibers.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2018
    Review
  10. Draft Genome Sequence ofGenome announcements · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

5 authors at 2 institutions in 1 country.

Naotake KonnoGraduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.
Kiyohiko Igarashi
Naoto Habu
Masahiro Samejima
Akira Isogai
The University of Tokyo · JPUtsunomiya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The filamentous fungus Trichoderma reesei produces glucuronan lyase (TrGL) when it is grown on beta-(1-->4)-polyglucuronate (cellouronate) as a sole carbon source. The cDNA encoding TrGL was cloned, and the recombinant enzyme was heterologously expressed in Pichia pastoris. The cDNA of TrGL includes a 777-bp open reading frame encoding a 20-amino-acid signal peptide and the 238-amino-acid mature protein. The amino acid sequence showed no similarity to the amino acid sequences of previously described functional proteins, indicating that the enzyme should be classified in a novel polysaccharide lyase (PL) family. Recombinant TrGL catalyzed depolymerization of cellouronate endolytically by beta-elimination and was highly specific for cellouronate. The enzyme was most active at pH 6.5 and 50 degrees C, and its activity and thermostability increased in the presence of Ca2+, suggesting that its calcium dependence is similar to that of other PLs, such as pectate lyases.

Indexed as

Cloning, MolecularCalciumDNA, FungalEnzyme ActivatorsEnzyme StabilityFungal ProteinsHydrogen-Ion ConcentrationMolecular Sequence DataOpen Reading FramesPichiaPolysaccharide-LyasesPolysaccharidesProtein Sorting SignalsSequence Analysis, DNASequence Homology, Amino AcidSubstrate SpecificityCalciumDNA, FungalEnzyme ActivatorsFungal Proteinsglucuronan lyasePolysaccharide-LyasesPolysaccharidesProtein Sorting Signals

Identifiers

PMID18978091
PMCPMC2612218
OpenAlexW2102298515

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.