Abstract:Адгезивные и инвазивные свойства токсигенных штаммов Corynebacterium diphtheriae Резюме Актуальность. В настоящее время известно, что токсигенные штаммы Corynebacterium diphtheriae способны не только к адгезии, но и инвазии в эпителиальные клетки верхних дыхательных путей. Помимо этого, коринебактерии обладают способностью к формированию биопленок, в составе которых они могут изменять в определенной мере свои свойства (размеры бактериальных клеток, антибиотикочувствительность), что может оказывать влияние на и… Show more
“…Using protein separation via two-dimensional gel electrophoresis to separate the proteins by means of the isoelectric point and apparent molecular mass, tryptic digestion of excised spots and peptide mass fingerprint analysis, 85 different secreted proteins were identified in the extracellular and cell surface proteome fraction, including different putative virulence factors. Partially based on this work, these proteins were further characterized in independent studies, e.g., the neuraminidase/exo-alpha sialidase NanH [ 11 ], the invasion-associated protein DIP1281 [ 12 , 13 ] or the fimbrial protein-associated sortase SrtC [ 14 ].…”
Section: Relevance and Properties Of Toxigenic Corynebacteriamentioning
Within the genus Corynebacterium, six species are potential carriers of the tox gene, which encodes the highly potent diphtheria exotoxin: Corynebacterium diphtheriae, Corynebacterium belfantii, Corynebacterium rouxii, Corynebacterium ulcerans, Corynebacterium pseudotuberculosis and Corynebacterium silvaticum. Based on their potential to infect different host species and cause either human infections, zoonotic diseases or infections of economically important animals, these bacteria are of high scientific and economic interest and different research groups have carried out proteome analyses. These showed that especially the combination of MS-based proteomics with bioinformatic tools helped significantly to elucidate the functional aspects of corynebacterial genomes and to handle the genome and proteome complexity. The combination of proteomic and bioinformatic approaches was also used to discover new vaccine and drug targets. In addition, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry has been established as a fast and precise tool for the identification of these bacteria.
“…Using protein separation via two-dimensional gel electrophoresis to separate the proteins by means of the isoelectric point and apparent molecular mass, tryptic digestion of excised spots and peptide mass fingerprint analysis, 85 different secreted proteins were identified in the extracellular and cell surface proteome fraction, including different putative virulence factors. Partially based on this work, these proteins were further characterized in independent studies, e.g., the neuraminidase/exo-alpha sialidase NanH [ 11 ], the invasion-associated protein DIP1281 [ 12 , 13 ] or the fimbrial protein-associated sortase SrtC [ 14 ].…”
Section: Relevance and Properties Of Toxigenic Corynebacteriamentioning
Within the genus Corynebacterium, six species are potential carriers of the tox gene, which encodes the highly potent diphtheria exotoxin: Corynebacterium diphtheriae, Corynebacterium belfantii, Corynebacterium rouxii, Corynebacterium ulcerans, Corynebacterium pseudotuberculosis and Corynebacterium silvaticum. Based on their potential to infect different host species and cause either human infections, zoonotic diseases or infections of economically important animals, these bacteria are of high scientific and economic interest and different research groups have carried out proteome analyses. These showed that especially the combination of MS-based proteomics with bioinformatic tools helped significantly to elucidate the functional aspects of corynebacterial genomes and to handle the genome and proteome complexity. The combination of proteomic and bioinformatic approaches was also used to discover new vaccine and drug targets. In addition, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry has been established as a fast and precise tool for the identification of these bacteria.
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