Evidence map›Paper›PMID 38773305›Full record

ArticleNature biotechnology2025

Development of multiplexed orthogonal base editor (MOBE) systems.

Quinn T Cowan, Sifeng Gu, Wanjun Gu, Brodie L Ranzau, Tatum S Simonson, Alexis C Komor

Abstract read
In one paragraph

Article in Nature biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Development and Future Prospects of Bamboo Gene Science.International journal of molecular sciences · 2025
    Review
  9. Article
  10. Review
  11. Article
  12. 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

6 authors.

Quinn T CowanDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0002-8697-8178
Sifeng GuDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
Wanjun GuDepartment of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, University of California San Diego, La Jolla, CA, USA.
Brodie L RanzauDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0002-6170-7187
Tatum S SimonsonDepartment of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, University of California San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0003-4062-2587
Alexis C KomorDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA. akomor@ucsd.edu.ORCID http://orcid.org/0000-0001-5043-0998

Funding

MOLECULAR BIOPHYSICS TRAINING PROGRAMT32GM008326 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KOMIVES, ELIZABETH A. · 1989 to 2020
$7.5M
Supplement to R35 "Development and Application of New Genome Editing Tools for the Functional Investigation of Genetic Variants of Uncertain Significance"R35GM138317 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Alexis C. Komor · 2020 to 2026
$2.8M
Respiratory and genomic contributions to adaptive/maladaptive hypoxia responsesR01HL145470 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SIMONSON, TATUM S · 2019 to 2023
$2.4M
Chemical Biology Interfaces at UC San DiegoT32GM112584 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BURKART, MICHAEL D. · 2015 to 2019
$729k
NHLBI NIH HHS R01 HL145470NIGMS NIH HHS R35 GM138317NIGMS NIH HHS T32 GM008326NIGMS NIH HHS T32 GM112584Research Corporation for Science Advancement (Research Corporation) 28385U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) 1R35GM138317
6 · The paper itself

Abstract

Base editors (BEs) enable efficient, programmable installation of point mutations while avoiding the use of double-strand breaks. Simultaneous application of two or more different BEs, such as an adenine BE (which converts A·T base pairs to G·C) and a cytosine BE (which converts C·G base pairs to T·A), is not feasible because guide RNA crosstalk results in non-orthogonal editing, with all BEs modifying all target loci. Here we engineer both adenine BEs and cytosine BEs that can be orthogonally multiplexed by using RNA aptamer-coat protein systems to recruit the DNA-modifying enzymes directly to the guide RNAs. We generate four multiplexed orthogonal BE systems that enable rates of precise co-occurring edits of up to 7.1% in the same DNA strand without enrichment or selection strategies. The addition of a fluorescent enrichment strategy increases co-occurring edit rates up to 24.8% in human cells. These systems are compatible with expanded protospacer adjacent motif and high-fidelity Cas9 variants, function well in multiple cell types, have equivalent or reduced off-target propensities compared with their parental systems and can model disease-relevant point mutation combinations.

Indexed as

CRISPR-Cas SystemsGene EditingAdenineAptamers, NucleotideCytosineHEK293 CellsHumansRNA, Guide, CRISPR-Cas SystemsAdenineAptamers, NucleotideCytosineRNA, Guide, CRISPR-Cas Systems

Identifiers

PMID38773305
PMCPMC11579250

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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.