An Extracellular Serine/Threonine-Rich Protein from Lactobacillus plantarum NCIMB 8826 Is a Novel Aggregation-Promoting Factor with Affinity to Mucin
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Autoaggregation in lactic acid bacteria is directly related to the production of certain extracellular proteins, notably, aggregation-promoting factors (APFs). Production of aggregation-promoting factors confers beneficial traits to probiotic-producing strains, contributing to their fitness for the intestinal environment. Furthermore, coaggregation with pathogens has been proposed to be a beneficial mechanism in probiotic lactic acid bacteria. This mechanism would limit attachment of the pathogen to the gut mucosa, favoring its removal by the human immune system. In the present paper, we have characterized a novel aggregation-promoting factor in Lactobacillus plantarum. A mutant with a knockout of the D1 gene showed loss of its autoaggregative phenotype and a decreased ability to bind to mucin, indicating an adhesion role of this protein. In addition, heterologous production of the D1 protein or an internal fragment of the protein, characterized by its abundance in serine/threonine, strongly induced autoaggregation in Lactococcus lactis. This result strongly suggested that this internal fragment is responsible for the bioactivity of D1 as an APF. To our knowledge, this is the first report on a gene coding for an aggregation-promoting factor in Lb. plantarum.
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Autoaggregation has been observed in a variety of environmental species, including isolates from drinking water, activated sludge, fermented foods, and industrial and intestinal sources.
“Autoaggregation has been observed in a variety of environmental species, including isolates from drinking water, activated sludge, fermented foods, and industrial and intestinal sources [10],[20],[41],[74],[102].”
From Bacterial autoaggregation (2018) · cites this paper as [41]
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- Authors
- Hevia, A., Martínez, N., Ladero, V., Álvarez, M. A., Margolles, A., & Sánchez, B.
- Affiliations
- Consejo Superior de Investigaciones Científicas (ES)
- Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Villaviciosa, Asturias, Spain
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 2013-10
- Volume
- 79
- Issue
- 19
- Pages
- 6059-6066
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- PMC
- PMC3811371
- OpenAlex
- W2009131364
- Cited by
- 35
- References
- 48
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 5 · 2023: 1 · 2022: 1 · 2021: 6 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 2 · 2014: 4
- FWCI
- 3.97
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Applied and Environmental Microbiology (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Consultation of the Doctoral Thesis Database (TESEO) (Ministerio de Educación, Cultura y Deporte) (submittedVersion, cc-by-nc-nd)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
- Funders
- Ministerio de Economía y Competitividad
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
- Keywords
- Lactobacillus plantarum, self-aggregation, mucin binding, probiotic lactic acid bacteria, knockout mutants, extracellular proteins
- MeSH terms
- Bacterial Adhesion, Molecular Sequence Data, Mucins, Protein Binding, Sequence Analysis, DNA, Adhesins, Bacterial, Lactiplantibacillus plantarum, Gene Knockout Techniques
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