Evidence map›Paper›PMID 42747567›Full record

ArticleApplied microbiology and biotechnology2026

An inducer-independent, single-plasmid CRISPR-Cas9 system for genome editing in Bacillus species.

Maximilian Hilkmann, Norma Welsch, Max Fabian Felle, Thomas Schweder, Mathis Appelbaum

Abstract read
In one paragraph

Article in Applied microbiology and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Maximilian HilkmannPharmaceutical Biotechnology, Institute of Pharmacy, University of Greifswald, 17487, Greifswald, Germany.
Norma WelschPharmaceutical Biotechnology, Institute of Pharmacy, University of Greifswald, 17487, Greifswald, Germany.
Max Fabian FelleBASF SE, 67063, Ludwigshafen Am Rhein, Germany.
Thomas SchwederPharmaceutical Biotechnology, Institute of Pharmacy, University of Greifswald, 17487, Greifswald, Germany. schweder@uni-greifswald.de.ORCID https://orcid.org/0000-0002-7213-3596
Mathis AppelbaumPharmaceutical Biotechnology, Institute of Pharmacy, University of Greifswald, 17487, Greifswald, Germany. mathis.appelbaum@basf.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Advances in molecular biology tools are essential for streamlining and accelerating genetic engineering of cells across industrial and academic applications. While CRISPR-Cas improves genome editing efficiency, current systems have limitations and are often host specific, which restricts their versatility. This study describes a versatile CRISPR-Cas9 system for genome editing in industrially relevant Bacillus species. By adapting the well-established pJOE8999 vector-based CRISPR-Cas9 genome editing system, we constructed an inducer-independent, broad-host-range genome editing system. It maintains the benefits of low toxicity to the target cell and the cloning host as well as the ease to use of a single-plasmid CRISPR-Cas9 system. We utilized the constitutive Sigma70-type promoter from the conserved veg gene of Bacillus, to develop and test the suitability of promoter variants of different strengths for Cas9 expression. Successful gene deletions in three different Bacillus species demonstrated the versatility of the modified system for this industrially important genus. This was further confirmed by the integration of a reporter gene fusion and the introduction of a single point mutation in the genome of Bacillus licheniformis. This one-step CRISPR-based transformation protocol developed in this study enables fast genome editing workflows with minimal hands-on time. KEY POINTS: • Editing and screening of promoter variants for balanced Cas9 expression in Bacillus. • Development of a versatile inducer-independent, single-plasmid CRISPR-Cas-based system. • Verification of the modified CRISPR-based system for genome editing in different Bacilli.

Indexed as

BacillusCRISPR-Cas SystemsGene EditingPlasmidsGene DeletionGenome, BacterialPromoter Regions, GeneticBacillusCRISPR-CasGenome editingPromoterStrain optimization

Identifiers

PMID42747567
PMCPMC13582722

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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.