Evidence map›Paper›PMID 30909908›Full record

ArticleMicrobial cell factories2019

Optimizing a CRISPR-Cpf1-based genome engineering system for Corynebacterium glutamicum.

Jiao Zhang, Fayu Yang, Yunpeng Yang, Yu Jiang, Yi-Xin Huo

Abstract read
In one paragraph

Article in Microbial cell factories, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Review
  2. Review
  3. Development of a CRISPR/Cas9 genome editing toolbox forSynthetic and systems biotechnology · 2025
    Article
  4. Article
  5. Article
  6. Single and multiplexed gene repression in solventogenicSynthetic and systems biotechnology · 2023
    Article
  7. Review
  8. Article
  9. Synthetic biology tools for engineeringComputational and structural biotechnology journal · 2023
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Single-Base Genome Editing inJournal of microbiology and biotechnology · 2020
    Article
  16. Article
  17. Article
  18. The Versatile Type V CRISPR Effectors and Their Application Prospects.Frontiers in cell and developmental biology · 2020
    Review
  19. Barriers to genome editing with CRISPR in bacteria.Journal of industrial microbiology & biotechnology · 2019
    Review
  20. Recent Advances of L-ornithine Biosynthesis in Metabolically EngineeredFrontiers in bioengineering and biotechnology · 2019
    Review
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.

Jiao ZhangKey Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, China.
Fayu YangKey Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, China.
Yunpeng YangKey Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, China.
Yu JiangKey Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
Yi-Xin HuoKey Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, China. huoyixin@bit.edu.cn.ORCID http://orcid.org/0000-0003-4644-999X

Funding

National Key Research and Development Plan No. 2017YFD201400No. 21676026 National Natural Science Foundation of China
6 · The paper itself

Abstract

backgroundCorynebacterium glutamicum is an important industrial strain for the production of a diverse range of chemicals. Cpf1 nucleases are highly specific and programmable, with efficiencies comparable to those of Cas9. Although the Francisella novicida (Fn) CRISPR-Cpf1 system has been adapted for genome editing in C. glutamicum, the editing efficiency is currently less than 15%, due to false positives caused by the poor targeting efficiency of the crRNA.

resultsTo address this limitation, a screening strategy was developed in this study to systematically evaluate crRNA targeting efficiency in C. glutamicum. We quantitatively examined various parameters of the C. glutamicum CRISPR-Cpf1 system, including the protospacer adjacent motif (PAM) sequence, the length of the spacer sequence, and the type of repair template. We found that the most efficient C. glutamicum crRNA contained a 5'-NYTV-3' PAM and a 21 bp spacer sequence. Moreover, we observed that linear DNA could be used to repair double strand breaks.

conclusionsHere, we identified optimized PAM-related parameters for the CRISPR-Cpf1 system in C. glutamicum. Our study sheds light on the function of the FnCpf1 endonuclease and Cpf1-based genome editing. This optimized system, with higher editing efficiency, could be used to increase the production of bulk chemicals, such as isobutyrate, in C. glutamicum.

Indexed as

Bacterial ProteinsClustered Regularly Interspaced Short Palindromic RepeatsCorynebacterium glutamicumEndonucleasesGene EditingRNABacterial ProteinsEndonucleasesRNACorynebacterium glutamicumCRISPR-Cpf1crRNAIsobutyrateLinear templatePAM

Identifiers

PMID30909908
PMCPMC6432761

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Registered trials

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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.