کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2455480 1110513 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of a 43-kDa outer membrane protein of Fusobacterium necrophorum that exhibits similarity with pore-forming proteins of other Fusobacterium species
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Identification of a 43-kDa outer membrane protein of Fusobacterium necrophorum that exhibits similarity with pore-forming proteins of other Fusobacterium species
چکیده انگلیسی

A pair of primers was designed in an attempt to amplify outer membrane protein (OMP) gene of Fusobacterium necrophorum based on nucleotide sequence of the OMP of Fusobacterium nucleatum. Further analysis was performed to characterize its molecular properties and phylogeny in the genus Fusobacterium. We identified a predicated 43 kDa outer membrane protein (43 K OMP) in F. necrophorum, which showed the same properties as other pore-forming proteins of Gram-negative anaerobic bacteria according to analysis of signal peptide, AT-rich, membrane-spanning region and conserved motifs. The predicated 43 K OMP exhibited 70.22%, 62.04%, 56.75%, 58.72%, 51.59%, 31.49% and 50.26% amino acid identity with the OMPs of F. nucleatum, Fusobacterium varium, Fusobacterium ucerans, Fusobacterium periodonticum, Fusobacterium mortiferum, Fusobacterium gonidiaformans and F. necrophorum (hypothetical protein), respectively. 11 common conserved domains and 10 common variable domains were found among the 45 aligned OMPs of Fusobacterium species. Distributions of the conserved and variable domains were highly associated with predicted membrane-spanning regions, cell surface exposed regions and B-cell epitope regions. Phylogenetic analysis revealed the predicated 43 K OMP of F. necrophorum was closely related with the OMPs from F. nucleatum and F. periodonticum. These data will increase understanding of pathogenesis and genetic evolution of F. necrophorum.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research in Veterinary Science - Volume 95, Issue 1, August 2013, Pages 27–33
نویسندگان
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