Evidence map›Paper›PMID 29255209›Full record

ArticleScientific reports2017

Enzymatic production of all fourteen partially acetylated chitosan tetramers using different chitin deacetylases acting in forward or reverse mode.

Lea Hembach, Stefan Cord-Landwehr, Bruno M Moerschbacher

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

23 citing papers in PubMed, 78 citations in OpenAlex.

  1. Acetylation and accessibility ofCell surface (Amsterdam, Netherlands) · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Cell wall composition inFrontiers in fungal biology · 2023
    Article
  8. Article
  9. Article
  10. Review
  11. Customized chitooligosaccharide production-controlling their lengthFrontiers in bioengineering and biotechnology · 2022
    Article
  12. Article
  13. Cell surface (Amsterdam, Netherlands) · 2021
    Article
  14. Article
  15. Production of Structurally Defined Chito-Oligosaccharides with a SingleJournal of agricultural and food chemistry · 2021
    Article
  16. Review
  17. Article
  18. Preparation of Defined Chitosan Oligosaccharides Using Chitin Deacetylases.International journal of molecular sciences · 2020
    Review
  19. Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Lea HembachInstitut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, Schlossplatz 8, 48143, Münster, Germany.
Stefan Cord-LandwehrInstitut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, Schlossplatz 8, 48143, Münster, Germany.ORCID 0000-0003-1915-1936
Bruno M MoerschbacherInstitut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, Schlossplatz 8, 48143, Münster, Germany. moersch@uni-muenster.de.ORCID 0000-0001-6067-3205
University of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Some of the most abundant biomolecules on earth are the polysaccharides chitin and chitosan of which especially the oligomeric fractions have been extensively studied regarding their biological activities. However, most of these studies have not been able to assess the activity of a single, defined, partially acetylated chitosan oligosaccharide (paCOS). Instead, they have typically analyzed chemically produced, rather poorly characterized mixtures, at best with a single, defined degree of polymerization (DP) and a known average degree of acetylation (DA), as no pure and well-defined paCOS are currently available. We here present data on the enzymatic production of all 14 possible partially acetylated chitosan tetramers, out of which four were purified (>95%) regarding DP, DA, and pattern of acetylation (PA). We used bacterial, fungal, and viral chitin deacetylases (CDAs), either to partially deacetylate the chitin tetramer; or to partially re-N-acetylate the glucosamine tetramer. Both reactions proceeded with surprisingly strong and enzyme-specific regio-specificity. These pure and fully defined chitosans will allow to investigate the particular influence of DP, DA, and PA on the biological activities of chitosans, improving our basic understanding of their modes of action, e.g. their molecular perception by patter recognition receptors, but also increasing their usefulness in industrial applications.

Indexed as

AcetylationAmidohydrolasesChitinChitinasesChitosanOligosaccharidesPolymerizationProtein Processing, Post-TranslationalProteinsSubstrate SpecificityAmidohydrolasesChitinChitinaseschitin deacetylaseChitosanOligosaccharidesProteins

Identifiers

PMID29255209
PMCPMC5735187
OpenAlexW2771919558

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.