Evidence map›Paper›PMID 39721016›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025

Expanding Cas12a Activity Control with an RNA G-Quadruplex at the 5' end of CRISPR RNA.

Wenjuan Huang, Jiaqi Wang, Cheng Wang, Yuanfang Liu, Wentao Li, Qiaozhen Chen, Junqiu Zhai, Zhenyang Xiang, Chaoxing Liu

Abstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. SDS-CRISPR for Single-Nucleotide Variant Detection.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Expanding Cas12a Activity Control with an RNA G-Quadruplex at the 5' end of CRISPR RNA.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  16. 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

9 authors.

Wenjuan HuangTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000, P. R. China.
Jiaqi WangGuangdong Provincial Key Laboratory of Digestive Cancer Research, Digestive Diseases Center, Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, P. R. China.
Cheng WangTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000, P. R. China.
Yuanfang LiuGuangdong Provincial Key Laboratory of Digestive Cancer Research, Digestive Diseases Center, Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, P. R. China.
Wentao LiDepartment of Clinical Laboratory, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, P. R. China.
Qiaozhen ChenSchool of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
Junqiu ZhaiSchool of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
Zhenyang XiangTaizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000, P. R. China.
Chaoxing LiuGuangdong Provincial Key Laboratory of Digestive Cancer Research, Digestive Diseases Center, Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, P. R. China.ORCID https://orcid.org/0000-0003-3077-9660

Funding

Guangdong Basic and Applied Basic Research Foundation 2024A1515012319National Natural Science Foundation of China 22307150National Natural Science Foundation of China 82401294Shenzhen Medical Research Fund A2303012Shenzhen Science and Technology Program JCYJ20230807110315032Shenzhen Science and Technology Program JCYJ20240813150427036
6 · The paper itself

Abstract

Precise control of Cas12a activity is essential for the improvement of the detection limit of clinical diagnostics and the minimization of errors. This study addresses the challenge of controlling Cas12a activity, especially in the context of nucleic acid detection where the inherent incompatibility between isothermal amplification and CRISPR reactions complicates accurate diagnostics. An RNA G-quadruplex (RG4) structure at the 5' end of crRNA is introduced to modulate Cas12a activity accurately without the need for chemical modifications. The results indicate that the presence of RG4 does not significantly impact Cas12a's cleavage activity but can be controlled by RG4 stabilizers, enabling the suppression and subsequent restoration of Cas12a activity with potential for precise activity control. Moreover, the use of RG4 is expanded by incorporating it into split crRNA, introducing RG4 directly at the 5' end of the direct repeat (DR) region, enabling tailored activity regulation for different targets by matching with various Spacer regions. Additionally, a light-controlled one-pot method for activating Cas12a is developed, thereby enhancing the accuracy and sensitivity of clinical samples. This study showcases the pioneering use of RG4 in manipulating Cas12a activity, streamlining diagnostics, and paving the way for advances in clinical nucleic acid testing.

Indexed as

Bacterial ProteinsClustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Associated ProteinsCRISPR-Cas SystemsEndodeoxyribonucleasesG-QuadruplexesRNAHumansBacterial ProteinsCas12a proteinCRISPR-Associated ProteinsEndodeoxyribonucleasesRNACRISPR‐Cas12aCRISPR RNAone‐pot detectionprecise controlRNA G‐quadruplex

Identifiers

PMID39721016
PMCPMC11831528

What OpenQuestion holds

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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.