ArticleNature communications2025
EatA mediated degradation of intestinal mucus is species-specific and driven by MUC2 structural features.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Discovery of a secretedGut microbes · 2026Article
- Real-time sensing-integrated organoid-on-a-chip platforms: Technological progress and emerging biomedical applications.Bioactive materials · 2026Review
- Sodium Humate Combined with Low-Dose Cefixime Alleviates Intestinal Injury in ETEC Infection via Inhibition of the TLR4/NF-κB Pathway.Biomolecules · 2026Article
- Genomic characterization of Enterotoxigenic Escherichia coli lineage 2 (CS2 + CS3) by long-read sequencing reveals distinct lineage-specific genome organization.Scientific reports · 2026Article
- Giant Panda Feces-DerivedVeterinary sciences · 2026Article
- The Effect of Pediococcus Lactis and Postbiotics on Gut Health and Intestinal Metabolic Profiles.Nutrients · 2026Article
- Novel Perspectives on the Relationship Between the Gastrointestinal Mucus Barrier and Soybean Agglutinin.Cells · 2026Review
- Prevalence of noncanonical virulence factors in the adherence and invasion by enterotoxigenicFrontiers in cellular and infection microbiology · 2026Article
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Authors and funding
12 authors.
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Abstract
Enterotoxigenic Escherichia coli (ETEC) infections are a leading cause of diarrheal illness, responsible for an estimated 100,000 deaths annually. ETEC pathogenesis is driven by various virulence factors, including toxins, adhesins, and noncanonical factors such as the protease EatA. The first line of host defense against intestinal pathogenic bacterial infections is the protective intestinal mucus layer. Here, we demonstrate the mechanism by which EatA degrades the core mucus component MUC2, thereby facilitating access to the epithelial cell surface and promoting infection. We identify the specific cleavage site region localized at the C-terminal of MUC2. EatA's protease activity depends on the interaction between two distinct, uniquely spaced domains in human MUC2, which defines species specificity. We confirm this using a novel transgenic mouse model exclusively expressing human MUC2, which allows us to study the role of the mucus layer in the infection by human intestinal pathogens. These findings highlight how ETEC is adapted to specifically degrade the mucus layer of its human host.
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