Evidence map›Paper›PMID 41605925›Full record

ArticleNature communications2026

AACRNL evolved from virulence factor to epigenetic parasite driving genome expansion in free-living eukaryotes.

Tianjun Xu, Shang Geng, Xing Lv, Qianru Xing, Yuena Sun

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Tianjun XuLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China. tianjunxu@163.com.ORCID 0000-0003-3606-8069
Shang GengLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.
Xing LvLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.
Qianru XingLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.
Yuena SunLaboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.

Funding

National Natural Science Foundation of China (National Science Foundation of China) 31822057
6 · The paper itself

Abstract

Crinkler effectors are iconic toxins deployed by pathogens to suppress host immunity, a function long thought exclusive to pathogenic species. Here, we uncover a striking evolutionary twist: an ADP-ribosyltransferase-associated Crinkler-like protein that has repurposed its toxin-derived activity to function as an epigenetic parasite in free-living eukaryotes, challenging the paradigm that Crinkler effectors are exclusively pathogen-restricted virulence factors. The ADP-ribosyltransferase-associated Crinkler-like protein retains a functional mono-ADP-ribosyltransferase domain homologous to diphtheria toxin, yet exhibits degeneration of N-terminal host-targeting domain, severing ties to canonical pathogenic functions. This activity enables dual subversion of host mechanisms: the ADP-ribosyltransferase-associated Crinkler-like protein mono-ADP-ribosylates the EZH2, reducing H3K27me3-mediated silencing and reactivating its own locus and adjacent transposons to drive replicative amplification; simultaneously, it modifies the immune adaptor TRAF6, suppressing NF-κB and IRF3 pathways to weaken innate immune surveillance and facilitate sustained propagation within the host genome. Notably, this parasitic strategy is countered by host detoxification: TRAF6 ubiquitinates ADP-ribosyltransferase-associated Crinkler-like protein, targeting it for proteasomal degradation. Together, our findings reveal how a toxin-derived effector escaped pathogenic contexts to evolve as a selfish genomic element, leveraging toxin-like activity to subvert epigenetic and immune barriers and redefining the evolutionary potential of Crinkler toxins as drivers of genomic conflict beyond pathogenicity.

Indexed as

ADP Ribose TransferasesEpigenesis, GeneticEukaryotaVirulence FactorsAnimalsEvolution, MolecularGenomeHumansADP Ribose TransferasesVirulence Factors

Identifiers

PMID41605925
PMCPMC12957317

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.