Evidence map›Paper›PMID 33596923›Full record

ArticleMicrobial cell factories2021

Construction and comprehensive characterization of an EcLDCc-CatIB set-varying linkers and aggregation inducing tags.

Kira Küsters, Martina Pohl, Ulrich Krauss, Gizem Ölçücü, Sandor Albert, Karl-Erich Jaeger, Wolfgang Wiechert, Marco Oldiges

Abstract read
In one paragraph

Article in Microbial cell factories, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Review
  2. Evaluating Enzymatic Productivity-The Missing Link to Enzyme Utility.International journal of molecular sciences · 2022
    Review
  3. 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

8 authors.

Kira KüstersInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0002-2472-9926
Martina PohlInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0001-9935-5183
Ulrich KraussInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0003-2219-7388
Gizem ÖlçücüInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0001-5126-4530
Sandor AlbertInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0002-1261-8428
Karl-Erich JaegerInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID http://orcid.org/0000-0002-6036-0708
Wolfgang WiechertInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.ORCID https://orcid.org/0000-0001-8501-0694
Marco OldigesInstitute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany. m.oldiges@fz-juelich.de.ORCID http://orcid.org/0000-0003-0704-5597

Funding

State of North Rhine Westphalia (NRW) and the European Regional Development Fund (EFRE), Project "CLIB-Kompetenzzentrum Biotechnologie (CKB) 34.EFRE-0300096State of North Rhine Westphalia (NRW) and the European Regional Development Fund (EFRE), Project "CLIB-Kompetenzzentrum Biotechnologie (CKB) 34.EFRE-0300097
6 · The paper itself

Abstract

backgroundIn recent years, the production of inclusion bodies that retained substantial catalytic activity was demonstrated. These catalytically active inclusion bodies (CatIBs) were formed by genetic fusion of an aggregation inducing tag to a gene of interest via short linker polypeptides and overproduction of the resulting gene fusion in Escherichia coli. The resulting CatIBs are known for their high stability, easy and cost efficient production, and recyclability and thus provide an interesting alternative to conventionally immobilized enzymes.

resultsHere, we present the construction and characterization of a CatIB set of the lysine decarboxylase from Escherichia coli (EcLDCc), constructed via Golden Gate Assembly. A total of ten EcLDCc variants consisting of combinations of two linker and five aggregation inducing tag sequences were generated. A flexible Serine/Glycine (SG)- as well as a rigid Proline/Threonine (PT)-Linker were tested in combination with the artificial peptides (18AWT, L6KD and GFIL8) or the coiled-coil domains (TDoT and 3HAMP) as aggregation inducing tags. The linkers were fused to the C-terminus of the EcLDCc to form a linkage between the enzyme and the aggregation inducing tags. Comprehensive morphology and enzymatic activity analyses were performed for the ten EcLDCc-CatIB variants and a wild type EcLDCc control to identify the CatIB variant with the highest activity for the decarboxylation of L-lysine to 1,5-diaminopentane. Interestingly, all of the CatIB variants possessed at least some activity, whilst most of the combinations with the rigid PT-Linker showed the highest conversion rates. EcLDCc-PT-L6KD was identified as the best of all variants allowing a volumetric productivity of 457 g L

conclusionsOur results clearly show that the choice of linker and aggregation inducing tag has a strong influence on the morphology and the enzymatic activity of the CatIBs. Strikingly, the linker had the most pronounced influence on these characteristics.

Indexed as

Carboxy-LyasesEscherichia coliInclusion BodiesCarboxy-Lyaseslysine decarboxylaseCatalytically active inclusion bodiesDownstream processingEnzymesImmobilizationMicroscopic analysisProtein aggregatesProtein engineering

Identifiers

PMID33596923
PMCPMC7891155

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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.