Evidence map›Paper›PMID 30301900›Full record

ArticleScientific reports2018

Understanding the transfer reaction network behind the non-processive synthesis of low molecular weight levan catalyzed by Bacillus subtilis levansucrase.

Enrique Raga-Carbajal, Agustín López-Munguía, Laura Alvarez, Clarita Olvera

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.5field-weighted citation impact, top 5% 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, 56 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Molecular Basis ofJournal of agricultural and food chemistry · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Levansucrase: Enzymatic Synthesis of Engineered Prebiotics.Current pharmaceutical biotechnology · 2023
    Article
  14. Erwinia tasmaniensis levansucrase shows enantiomer selection for (S)-1,2,4-butanetriol.Acta crystallographica. Section F, Structural biology communications · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Levansucrase fromBiomolecules · 2020
    Article
  20. The Structure of Sucrose-Soaked Levansucrase Crystals fromInternational journal of molecular sciences · 2019
    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

4 authors at 1 institution in 1 country.

Enrique Raga-CarbajalDepartamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, UNAM. Av. Universidad #2001, Col. Chamilpa, C. P, 62210, Cuernavaca, Morelos, Mexico.
Agustín López-MunguíaDepartamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, UNAM. Av. Universidad #2001, Col. Chamilpa, C. P, 62210, Cuernavaca, Morelos, Mexico.
Laura AlvarezCentro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos. Av. Universidad #1001, Col. Chamilpa, C.P, 62210, Cuernavaca, Morelos, Mexico.
Clarita OlveraDepartamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, UNAM. Av. Universidad #2001, Col. Chamilpa, C. P, 62210, Cuernavaca, Morelos, Mexico. clarita@ibt.unam.mx.ORCID http://orcid.org/0000-0002-8364-5845
Universidad Autónoma del Estado de Morelos · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Under specific reaction conditions, levansucrase from Bacillus subtilis (SacB) catalyzes the synthesis of a low molecular weight levan through the non-processive elongation of a great number of intermediates. To deepen understanding of the polymer elongation mechanism, we conducted a meticulous examination of the fructooligosaccharide profile evolution during the levan synthesis. As a result, the formation of primary and secondary intermediates series in different reaction stages was observed. The origin of the series was identified through comparison with product profiles obtained in acceptor reactions employing levanbiose, blastose, 1-kestose, 6-kestose, and neo-kestose, and supported with the isolation and NMR analyses of some relevant products, demonstrating that all of them are inherent products during levan formation from sucrose. These results allowed to establish the network of fructosyl transfer reactions involved in the non-processive levan synthesis. Overall, our results reveal how the relaxed acceptor specificity of SacB during the initial steps of the synthesis is responsible for the formation of several levan series, which constitute the final low molecular weight levan distribution.

Indexed as

Bacillus subtilisCatalysisDisaccharidasesDisaccharidesFructansHexosyltransferasesKineticsMolecular WeightOligosaccharidesSucroseTrisaccharides1-kestose6-kestoseblastoseDisaccharidasesDisaccharidesFructansfructooligosaccharideHexosyltransferaseslevanlevanbioselevansucraseneokestoseOligosaccharidesSucroseTrisaccharides

Identifiers

PMID30301900
PMCPMC6177408
OpenAlexW2895275579

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LicenceCC BY
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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.