Evidence map›Paper›PMID 30936526›Full record

ArticleNature structural & molecular biology2019

An anti-CRISPR protein disables type V Cas12a by acetylation.

Liyong Dong, Xiaoyu Guan, Ningning Li, Fan Zhang, Yuwei Zhu, Kuan Ren, Ling Yu, Fengxia Zhou, Zhifu Han, Ning Gao and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature structural & molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing 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

74 citing papers in PubMed.

  1. Article
  2. Revisiting the life cycle of temperate phages.Nature reviews. Microbiology · 2026
    Review
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  7. Article
  8. Review
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  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. CRISPR/Cpf1-FOKI-induced gene editing inSynthetic and systems biotechnology · 2024
    Article
  20. Article

14 more citing papers are in PubMed but not listed here.

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

11 authors.

Liyong Dong *HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Xiaoyu Guan *HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Ningning Li *State Key Laboratory of Membrane Biology, Peking-Tsinghua Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China.
Fan ZhangHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Yuwei ZhuHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Kuan RenHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Ling YuHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Fengxia ZhouHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Zhifu HanSchool of Life Sciences, Tsinghua University, Beijing, China.
Ning GaoState Key Laboratory of Membrane Biology, Peking-Tsinghua Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China.
Zhiwei HuangHIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China. huangzhiwei@hit.edu.cn.ORCID http://orcid.org/0000-0002-8201-9391

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phages use anti-CRISPR proteins to deactivate the CRISPR-Cas system. The mechanisms for the inhibition of type I and type II systems by anti-CRISPRs have been elucidated. However, it has remained unknown how the type V CRISPR-Cas12a (Cpf1) system is inhibited by anti-CRISPRs. Here we identify the anti-CRISPR protein AcrVA5 and report the mechanisms by which it inhibits CRISPR-Cas12a. Our structural and biochemical data show that AcrVA5 functions as an acetyltransferase to modify Moraxella bovoculi (Mb) Cas12a at Lys635, a residue that is required for recognition of the protospacer-adjacent motif. The AcrVA5-mediated modification of MbCas12a results in complete loss of double-stranded DNA (dsDNA)-cleavage activity. In contrast, the Lys635Arg mutation renders MbCas12a completely insensitive to inhibition by AcrVA5. A cryo-EM structure of the AcrVA5-acetylated MbCas12a reveals that Lys635 acetylation provides sufficient steric hindrance to prevent dsDNA substrates from binding to the Cas protein. Our study reveals an unprecedented mechanism of CRISPR-Cas inhibition and suggests an evolutionary arms race between phages and bacteria.

Indexed as

AcetylationAcetyltransferasesCRISPR-Associated ProteinsCRISPR-Cas SystemsMoraxellaMutationAcetyltransferasesCRISPR-Associated Proteins

Identifiers

What OpenQuestion holds

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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.