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The Peptidoglycan-Binding Protein SjcF1 Influences Septal Junction Function and Channel Formation in the Filamentous Cyanobacterium Anabaena

Opened Access The Peptidoglycan-Binding Protein SjcF1 Influences Septal Junction Function and Channel Formation in the Filamentous Cyanobacterium Anabaena

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Autor: Rudolf, Mareike
Tetik, Nalan
Ramos León, Félix
Flinner, Nadine
Burnat Clemente, Mireia
Pernil, Rafael
Flores Garcia, Enrique
Schleiff, Enrico
Departamento: Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular
Fecha: 2015
Publicado en: mBio, 6 (4), e00376-15.1-e00376-15.11.
Tipo de documento: Artículo
Resumen: Filamentous, heterocyst-forming cyanobacteria exchange nutrients and regulators between cells for diazotrophic growth. Two alternative modes of exchange have been discussed involving transport either through the periplasm or through septal junctions linking adjacent cells. Septal junctions and channels in the septal peptidoglycan are likely filled with septal junction complexes. While possible proteinaceous factors involved in septal junction formation, SepJ (FraG), FraC, and FraD, have been identified, little is known about peptidoglycan channel formation and septal junction complex anchoring to the peptidoglycan. We describe a factor, SjcF1, involved in regulation of septal junction channel formation in the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120. SjcF1 interacts with the peptidoglycan layer through two peptidoglycan-binding domains and is localized throughout the cell periphery but at higher levels in the intercellular septa. A strain with an insertion in sjc...
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Cita: Rudolf, M., Tetik, N., Ramos León, F., Flinner, N., Burnat Clemente, M., Pernil, R.,...,Schleiff, E. (2015). The Peptidoglycan-Binding Protein SjcF1 Influences Septal Junction Function and Channel Formation in the Filamentous Cyanobacterium Anabaena. mBio, 6 (4), e00376-15.1-e00376-15.11.
Tamaño: 2.941Mb
Formato: PDF

URI: http://hdl.handle.net/11441/64054

DOI: 10.1128/mBio.00376-15

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