Transcriptional regulation of adhesive properties of Bacillus subtilis to extracellular matrix proteins through the fibronectin-binding protein YloA

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dc.citation.titleMolecular Microbiology
dc.citation.volume104
dc.contributor.orcidhttp://orcid.org/0000-0002-6496-3696
dc.creatorRodríguez Ayala, Facundo
dc.creatorBauman, Carlos
dc.creatorBartolini, Marco
dc.creatorSaball, Ester
dc.creatorSalvarrey, Marcela
dc.creatorLeñini, Cecilia
dc.creatorCogliati, Sebastián
dc.creatorStrauch, Mark
dc.creatorGrau, Roberto Ricardo
dc.date.accessioned2024-08-05T12:46:50Z
dc.date.available2024-08-05T12:46:50Z
dc.date.issued2017-03-27
dc.description.abstractBacterial adherence to extracellular matrix proteins (ECMp) plays important roles during host–pathogen interaction, however its genetic regulation remains poorly understood. yloA of the model bacterium Bacillus subtilis shows high homology to genes encoding fibronectin-binding proteins of Gram-positive pathogens. Here, we characterized the regulatory network of YloA-dependent adhesive properties of the probiotic B. subtilis natto (Bsn). YloA-proficient, but not YloA-deficient, Bsn specifically bound to ECMp in a concentration-dependent manner and were proficient in biofilm formation. yloA expression showed a continuous increase in activity during the growth phase and decreased during the stationary phase. The transcription factors AbrB and DegU downregulated yloA expression during the logarithmic and stationary growth phases respectively. Analysis of the yloA promoter region revealed the presence of AT-rich direct and inverted repeats previously reported to function as DegU-recognized binding sites. In spo0A cells, yloA expression was completely turned off because of upregulation of AbrB throughout growth. Accordingly, DNase I footprinting analysis confirmed that AbrB bound to the promoter region of yloA. Interestingly, Bsn bound fibronectin with higher affinity, lower Kd, than several bacterial pathogens and competitively excluded them from binding to immobilized-fibronectin, a finding that might be important for the anti-infective properties of B. subtilis and its relatives.
dc.description.filFil: Rodríguez Ayala, Facundo. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.filFil: Bauman, Carlos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.filFil: Bartolini, Marco. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.filFil: Saball, Ester. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Bioquímica Clínica. Área Inmunología; Argentina.
dc.description.filFil: Salvarrey, Marcela. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Bioquímica Clínica. Área Inmunología; Argentina.
dc.description.filFil: Leñini, Cecilia. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.filFil: Cogliati, Sebastián. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.filFil: Strauch, Mark. University of Maryland. Dental School. Biomedical Sciences Department; USA.
dc.description.filFil: Grau, Roberto Ricardo. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Microbiología. Área Microbiología Básica; Argentina.
dc.description.sponsorshipFondo para la Investigación Científica y Tecnológica (FONCyT)
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
dc.description.sponsorshipFundación Antorchas
dc.description.sponsorshipFulbright and Pew Foundations
dc.format.extent804–821
dc.identifier.issn1365-2958
dc.identifier.urihttps://hdl.handle.net/2133/27507
dc.language.isoen
dc.publisherJohn Wiley & Sons Ltd
dc.relation.publisherversionhttps://doi.org/10.1111/mmi.13666
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/10.1111/mmi.13666
dc.rightsopenAccess
dc.rights.holderJohn Wiley & Sons Ltd
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas
dc.rights.textAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBacillus subtilis
dc.subjectProbiotics
dc.subjectExtracellular matrix proteins
dc.subjectBacterial adhesion
dc.titleTranscriptional regulation of adhesive properties of Bacillus subtilis to extracellular matrix proteins through the fibronectin-binding protein YloA
dc.typearticulo
dc.type.versionpublishedVersion

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