Evidence map›Paper›PMID 40838855›Full record

ArticleProtein science : a publication of the Protein Society2025

Understanding the stability landscape of LbCas12a by deep analysis of stabilizing mutations and mutation combinations.

Jiajun Dong, Shaojie Wang, Wenxue Xu, Jingyao Xin, Jia Liu

Abstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

5 authors.

Jiajun DongShanghai Institute for Advanced Immunochemical Studies and School of Life Sciences and Technology, ShanghaiTech University, Shanghai, China.
Shaojie WangShanghai Institute for Advanced Immunochemical Studies and School of Life Sciences and Technology, ShanghaiTech University, Shanghai, China.
Wenxue XuShanghai Institute for Advanced Immunochemical Studies and School of Life Sciences and Technology, ShanghaiTech University, Shanghai, China.
Jingyao XinShanghai Institute for Advanced Immunochemical Studies and School of Life Sciences and Technology, ShanghaiTech University, Shanghai, China.
Jia LiuShanghai Institute for Advanced Immunochemical Studies and School of Life Sciences and Technology, ShanghaiTech University, Shanghai, China.ORCID 0000-0001-9787-465X

Funding

National Natural Science Foundation of China 32471536
6 · The paper itself

Abstract

Cas12a is one of the most widely used Cas nucleases for genome editing and in vitro diagnosis. A number of engineered Cas12a mutants have been identified with improved activity and stability. However, it remains largely unaddressed how these mutations interact. In a previous study, we used a deep learning model to evolve the stability of Lachnospiraceae bacterium Cas12a (LbCas12a) and obtained about 90 mutants with improved stability. In the present study, we performed a deep analysis of these stabilizing mutations and mutation combinations to understand the stability landscape of LbCas12a. It was found that most of the stabilized mutants had shifted fitness, as characterized by higher trans-cleavage activity at high temperatures but lower activity at the "fit" temperature for the parent protein. These stabilizing mutations were found to have sophisticated epistatic effects. Stabilizing mutation S962K improved protein stability in the context of other stabilizing mutations but by itself exhibited minor improvements. Saturation mutagenesis of S962 had differential effects on the stability of wild-type (WT) LbCas12a and C10L/I976L/C1090D variant, despite similar melting temperatures (T

Indexed as

Bacterial ProteinsCRISPR-Associated ProteinsEndodeoxyribonucleasesMutationEnzyme StabilityProtein StabilityBacterial ProteinsCas12a proteinCRISPR-Associated ProteinsEndodeoxyribonucleasesLbCas12aprotein engineeringstabilityepistasis

Identifiers

PMID40838855
PMCPMC12369400

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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.