RESUMO
Fusariviridae is a family of mono-segmented, positive-sense RNA viruses with genome sizes of 5.9-10.7 kb. Most genomic RNAs are bicistronic, but exceptions have up to four predicted ORFs. In bicistronic genomes, the 5'-proximal ORF codes for a single protein with both RNA-directed RNA polymerase (RdRP) and RNA helicase (Hel) domains; little is known about the protein encoded by the second ORF. Fusarivirids do not appear to form virions. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Fusariviridae, which is available at ictv.global/report/fusariviridae.
Assuntos
Vírion , Vírus , Vírion/genética , Genômica , Fases de Leitura Aberta , RNARESUMO
Members of the family Fimoviridae are plant viruses with a multipartite negative-sense enveloped RNA genome (-ssRNA), composed of 4-10 segments comprising 12.3-18.5 kb in total, within quasi-spherical virions. Fimoviruses are transmitted to plants by eriophyid mites and induce characteristic cytopathologies in their host plants, including double membrane-bound bodies in the cytoplasm of virus-infected cells. Most fimoviruses infect dicotyledonous plants, and many cause serious disease epidemics. This is a summary of the ICTV Report on the family Fimoviridae, which is available at ictv.global/report/fimoviridae.
Assuntos
Genoma Viral , Doenças das Plantas , Vírus de Plantas , Doenças das Plantas/virologia , Animais , Vírus de Plantas/genética , Vírus de Plantas/classificação , Vírus de Plantas/fisiologia , RNA Viral/genética , Vírion/ultraestrutura , Plantas/virologia , Vírus de RNA de Sentido Negativo/genética , Vírus de RNA de Sentido Negativo/classificação , Ácaros/virologia , FilogeniaRESUMO
Hantaviridae is a family for negative-sense RNA viruses with genomes of about 10.5-14.6 kb. These viruses are maintained in and/or transmitted by fish, reptiles, and mammals. Several orthohantaviruses can infect humans, causing mild, severe, and sometimes-fatal diseases. Hantavirids produce enveloped virions containing three single-stranded RNA segments with open reading frames that encode a nucleoprotein (N), a glycoprotein precursor (GPC), and a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Hantaviridae, which is available at ictv.global/report/hantaviridae.
Assuntos
Vírus de RNA , Animais , Humanos , Vírus de RNA de Sentido Negativo , Vírion/genética , Nucleoproteínas , Fases de Leitura Aberta , MamíferosRESUMO
Phasmaviridae is a family for negative-sense RNA viruses with genomes of about 9.7-15.8 kb. These viruses are maintained in and/or transmitted by insects. Phasmavirids produce enveloped virions containing three single-stranded RNA segments that encode a nucleoprotein (N), a glycoprotein precursor (GPC), and a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Phasmaviridae, which is available at ictv.global/report/phasmaviridae.
Assuntos
Genoma Viral , RNA Viral , Animais , RNA Viral/genética , Vírus de RNA de Sentido Negativo/genética , Vírus de RNA de Sentido Negativo/classificação , Vírion/genética , Proteínas Virais/genética , Proteínas Virais/metabolismo , Insetos/virologia , Filogenia , Replicação ViralRESUMO
Kolmioviridae is a family for negative-sense RNA viruses with circular, viroid-like genomes of about 1.5-1.7 kb that are maintained in mammals, amphibians, birds, fish, insects and reptiles. Deltaviruses, for instance, can cause severe hepatitis in humans. Kolmiovirids encode delta antigen (DAg) and replicate using host-cell DNA-directed RNA polymerase II and ribozymes encoded in their genome and antigenome. They require evolutionary unrelated helper viruses to provide envelopes and incorporate helper virus proteins for infectious particle formation. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Kolmioviridae, which is available at ictv.global/report/kolmioviridae.
Assuntos
Vírus Auxiliares , Viroides , Animais , Humanos , Evolução Biológica , Vírus de RNA de Sentido Negativo , RNA Polimerase II , MamíferosRESUMO
Nairoviridae is a family for negative-sense RNA viruses with genomes of about 17.2-21.1 kb. These viruses are maintained in and/or transmitted by arthropods among birds, reptiles and mammals. Norwaviruses and orthonairoviruses can cause febrile illness in humans. Several orthonairoviruses can infect mammals, causing mild, severe and sometimes, fatal diseases. Nairovirids produce enveloped virions containing two or three single-stranded RNA segments with open reading frames that encode a nucleoprotein (N), sometimes a glycoprotein precursor (GPC), and a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) report on the family Nairoviridae, which is available at www.ictv.global/report/nairoviridae.
Assuntos
Genoma Viral , Animais , Humanos , Fases de Leitura Aberta , Proteínas Virais/genética , Nairovirus/genética , Nairovirus/classificação , Nairovirus/isolamento & purificação , RNA Viral/genética , Filogenia , Vírion/ultraestrutura , RNA Polimerase Dependente de RNA/genéticaRESUMO
The family Turriviridae includes viruses with a dsDNA genome of 16-17 kbp. Virions are spherical with a diameter of approximately 75 nm and comprise a host-derived internal lipid membrane surrounded by a proteinaceous capsid shell. Members of the family Turriviridae infect extremophilic archaea of the genera Sulfolobus and Saccharolobus. Viral infection results in cell lysis for Sulfolobus turreted icosahedral virus 1 infection but other members of the family can be temperate. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Turriviridae, which is available at ictv.global/report/turriviridae.
Assuntos
Vírus de DNA , Genoma Viral , Vírion , Vírus de DNA/classificação , Vírus de DNA/genética , Vírus de DNA/ultraestrutura , Vírion/ultraestrutura , Vírus de Archaea/classificação , Vírus de Archaea/genética , Vírus de Archaea/ultraestrutura , Vírus de Archaea/fisiologia , Sulfolobus/virologia , Sulfolobus/genética , DNA Viral/genéticaRESUMO
Filoviridae is a family of negative-sense RNA viruses with genomes of about 13.1-20.9 kb that infect fish, mammals and reptiles. The filovirid genome is a linear, non-segmented RNA with five canonical open reading frames (ORFs) that encode a nucleoprotein (NP), a polymerase cofactor (VP35), a glycoprotein (GP1,2), a transcriptional activator (VP30) and a large protein (L) containing an RNA-directed RNA polymerase (RdRP) domain. All filovirid genomes encode additional proteins that vary among genera. Several filovirids (e.g., Ebola virus, Marburg virus) are pathogenic for humans and highly virulent. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Filoviridae, which is available at www.ictv.global/report/filoviridae.
Assuntos
Ebolavirus , Marburgvirus , Rhabdoviridae , Animais , Humanos , Ebolavirus/genética , Rhabdoviridae/genética , Filogenia , Genoma Viral , Replicação Viral , Mamíferos/genéticaRESUMO
Cruliviridae is a family of negative-sense RNA viruses with genomes of 10.8-11.5 kb that have been found in crustaceans. The crulivirid genome consists of three RNA segments with ORFs that encode a nucleoprotein (NP), a glycoprotein (GP), a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain, and in some family members, a zinc-finger (Z) protein of unknown function. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Cruliviridae, which is available at ictv.global/report/cruliviridae.
Assuntos
Vírus de RNA , Vírus de RNA de Sentido Negativo , Nucleoproteínas , Fases de Leitura Aberta , RNARESUMO
Mypoviridae is a family of negative-sense RNA viruses with genomes of about 16.0 kb that have been found in myriapods. The mypovirid genome consists of three monocistronic RNA segments that encode a nucleoprotein (NP), a glycoprotein (GP), and a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Mypoviridae, which is available at: ictv.global/report/mypoviridae.
Assuntos
Artrópodes , Vírus de RNA , Vírus , Animais , Genoma Viral , Vírus de RNA/genética , Vírus/genética , Vírus de RNA de Sentido Negativo , Replicação Viral , Vírion/genéticaRESUMO
Tulasviridae is a family of ambisense RNA viruses with genomes of about 12.2 kb that have been found in fungi. The tulasvirid genome is nonsegmented and contains three open reading frames (ORFs) that encode a nucleoprotein (NP), a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain, and a protein of unknown function (X). This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Tulasviridae, which is available at ictv.global/report/tulasviridae.
Assuntos
Vírus de RNA , Vírus , Genoma Viral , Vírus/genética , Vírus de RNA/genética , Filogenia , Nucleoproteínas/genética , Replicação ViralRESUMO
Wupedeviridae is a family of negative-sense RNA viruses with genomes of about 20.5 kb that have been found in myriapods. The wupedevirid genome consists of three monocistronic RNA segments with open reading frames (ORFs) that encode a nucleoprotein (NP), a glycoprotein (GP), and a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Wupedeviridae, which is available at ictv.global/report/wupedeviridae.
Assuntos
Artrópodes , Vírus de RNA , Vírus , Animais , Genoma Viral , Vírus de RNA/genética , Vírus/genética , Vírus de RNA de Sentido Negativo , Replicação Viral , Vírion/genéticaRESUMO
Jingchuvirales is an order of negative-sense RNA viruses with genomes of 9.1-15.3 kb that have been associated with arachnids, barnacles, crustaceans, insects, fish and reptiles in Africa, Asia, Australia, Europe, North America and South America. The jingchuviral genome has two to four open reading frames (ORFs) that encode a glycoprotein (GP), a nucleoprotein (NP), a large (L) protein containing an RNA-directed RNA polymerase (RdRP) domain, and/or proteins of unknown function. Viruses in the order are only known from their genome sequences. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the order Jingchuvirales and on the families Aliusviridae, Chuviridae, Crepuscuviridae, Myriaviridae and Natareviridae, which are available at ictv.global/report/jingchuvirales, ictv.global/report/aliusviridae, ictv.global/report/chuviridae, ictv.global/report/crepuscuviridae, ictv.global/report/myriaviridae and ictv.global/report/natareviridae, respectively.