scholarly journals ТАКСОНОМІЧНА ХАРАКТЕРИСТИКА ДНК-ГЕНОМНИХ ВІРУСІВ ХРЕБЕТНИХ ТВАРИН І ЛЮДИНИ

2016 ◽  
Vol 18 (2(66)) ◽  
pp. 83-88
Author(s):  
O.S. Kalinina
Keyword(s):  
Cell Membrane ◽  
Outer Membrane ◽  
Viral Genome ◽  
Structural Organization ◽  
Symmetry Type ◽  
Outer Membrane Lipoprotein ◽  
Membrane Lipoprotein ◽  
Size And Structure

Presented modern taxonomy and nomenclature of the DNA-genomic of viruses of vertebrates animals and humans in accordance with the information ICTV release 2015 (ratification 2016). Described the basic criteria for the classification of viruses: characteristics of the viral genome, the mechanism of replication and virions morphology. Viruses of vertebrates (1120 species) consist of 4 orders, 34 families (12 – DNA-genomic, 22 – RNA-genomic), 11 subfamilies and 219 genera. DNA-genomic viruses of vertebrates (546 species) classified in 1 orders, 12 families, 5 subfamilies and 113 genera. The order Herpesvirales has united family Herpesviridae and Alloherpesviridae. Family Poxviridae, Iridoviridae and Parvoviridae, except of viruses of vertebrates, contain viruses of insects. Described the taxa of viruses:family, subfamily, genera, species. Characterized the basic taxonomic features of DNA-genomic viruses of vertebrates: the shape, size and structure of virions – the presence of outer membrane lipoprotein, capsid symmetry type, the structure of the viral DN and the number of proteins. The attention is focused on the features of reproduction of viruses. The replication of majority DNA-genomic viruses of vertebrates occur in the nucleus of cells, except for members of families Poxviridae and Asfarviridae, which are replicate in the cytoplasm. Yield virions is done due to destruction of cells or budding through the cell membrane (sometimes in combination with exocytosis) depending on the structural organization of the virus.

scholarly journals Таксономічна характеристика РНК-геномних вірусів хребетних тварин і людини

2017 ◽  
Vol 19 (78) ◽  
pp. 30-35
Author(s):  
O.S. Kalinina
Keyword(s):  
Plasma Membrane ◽  
Golgi Complex ◽  
Viral Genome ◽  
Eriocheir Sinensis ◽  
Outer Membrane Lipoprotein ◽  
The Family ◽  
Membrane Lipoprotein ◽  
Family Rhabdoviridae ◽  
Size And Structure

The article presents a modern taxonomy and nomenclature of viruses of vertebrates animals and human based on information ICTV release 2016 (ratification 2017).  Described the basic criteria for the classification of viruses: characteristics of the viral genome, the mechanism of replication and virions structure. Viruses of vertebrates (1269 species) consist of 5 orders, 38 families, including 12 – DNA-genomic and 26 – RNA-genomic, 12 subfamilies and 233 genera. RNA-genomic viruses of vertebrates (679 species) classified of 4 orders, 26 families, 6 subfamilies and 119 genera. The order Mononegavirales has united family Paramyxoviridae, Pneumoviridae, Rhabdoviridae, Filoviridae, Bornaviridae, Nyamiviridae and Sunviridae, order Nidovirales – family Coronaviridae and Arteriviridae, order Bunyavirales –family Hantaviridae, Nairoviridae, Peribunyaviridae and Phenuiviridae, order Picornavirales – family Picornaviridae. Family Rhabdoviridae, Nodaviridae, Peribunyaviridae, Phenuiviridae, Reoviridae and Birnaviridae, except viruses of vertebrates, contain viruses of insects, and family Rhabdoviridae, Phenuiviridae and Reoviridae – viruses of plants. There is а one of «floating» genus Deltavirus, which is not included of families. The family Reoviridae includes the Eriocheir sinensis reovirus, and the family Birnaviridae – Tellina virus. Described the taxa of viruses: family, subfamily, genera, species. Named typical species genera of viruses. Characterized the basic taxonomic features of RNA-genomic vertebrates viruses of animals and human: the shape, size and structure of virions – the presence of outer membrane lipoprotein, capsid symmetry type (spiral, icosahedral), the structure of the viral RNA (the number of threads, conformation, fragmentation, polarity). The attention to virus reproduction features. Replication of most RNA-genomic viruses occurs in cells of the cytoplasm, except for the representatives of the families Bornaviridae, Nyamiviridae, Orthomyxoviridae, Retroviridae and «floating» genus Deltavirus, which are replicated in the nucleus. Output of the progeny virions in simply organized viruses is due to cell destruction, and in most of the complexly organized viruses – plasma membrane buds, as well as through the membranes of the Golgi complex or the endoplasmic net in combination with exocytosis (Peribunyaviridae, Hantaviridae, Nairoviridae, Phenuiviridae, Flaviviridae, Coronaviridae, Arteriviridae). 

scholarly journals Sequence Diversity of the oprI Gene, Coding for Major Outer Membrane Lipoprotein I, among rRNA Group I Pseudomonads

1998 ◽  
Vol 180 (24) ◽  
pp. 6551-6556 ◽  
Author(s):  
Daniel De Vos ◽  
Christiane Bouton ◽  
Alain Sarniguet ◽  
Paul De Vos ◽  
Marc Vauterin ◽  
...  
Keyword(s):  
Outer Membrane ◽  
The Other ◽  
Widespread Distribution ◽  
Phylogenetic Marker ◽  
Silent Substitution ◽  
Group I ◽  
Gene Coding ◽  
Outer Membrane Lipoprotein ◽  
Membrane Lipoprotein

ABSTRACT The sequence of oprI, the gene coding for the major outer membrane lipoprotein I, was determined by PCR sequencing for representatives of 17 species of rRNA group I pseudomonads, with a special emphasis on Pseudomonas aeruginosa andPseudomonas fluorescens. Within the P. aeruginosa species, oprI sequences for 25 independent isolates were found to be identical, except for one silent substitution at position 96. The oprI sequences diverged more for the other rRNA group I pseudomonads (85 to 91% similarity with P. aeruginosa oprI). An accumulation of silent and also (but to a much lesser extent) nonsilent substitutions in the different sequences was found. A clustering according to the respective presence and/or positions of the HaeIII, PvuII, andSphI sites could also be obtained. A sequence cluster analysis showed a rather widespread distribution of P. fluorescens isolates. All other rRNA group I pseudomonads clustered in a manner that was in agreement with other studies, showing that the oprI gene can be useful as a complementary phylogenetic marker for classification of rRNA group I pseudomonads.

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