Viruses and their characteristics Flashcards
What are the icosahedral RNA viruses?
Reoviridae, Caliciviridae, Picornaviridae, Flaviviridae, Togaviridae and Retroviridae.
What are the helical RNA viruses?
Coronaviridae, Filoviridae, Rhabdoviridae, Bunyaviridae, Orthomyxoviridae and Paramyxoviridae.
What are your enveloped RNA viruses?
All the helical RNA viruses are enveloped:
Coronaviridae, Filoviridae, Rhabdoviridae, Bunyaviridae, Orthomyxoviridae and Paramyxoviridae.
What are your naked, icosahedral RNA viruses?
Reoviridae, Caliciviridae and Picornaviridae.
What are your enveloped, icosahedral RNA viruses?
Retroviridae, Flaviviridae and Togaviridae.
What is the structure of Reoviruses?
- Icosahedral capsid
- Naked viruses
- dsRNA genome
- Carry a virion polymerase
- 22-27 kb in size
What is the structure of the Caliciviridae?
- Icosahedral capsid
- Naked viruses
- (+)ssRNA continuous genome
- 8 kb in size
What is the structure of the Picornaviridae?
- Icosahedral capsid
- Naked viruses
- (+)ssRNA continuous genome
- 7.2-8.4 kb in size
What is the structure of the Flaviviridae?
- Icosahedral capsid
- Enveloped viruses
- (+)ssRNA continuous genome
- 10 kb in size
What is the structure of the Togaviridae?
- Icosahedral capsid
- Enveloped
- (+)ssRNA continuous genome
- 12 kb in size
What is the structure of the Retroviridae?
- Icosahedral capsid
- Enveloped
- (+)ssRNA x 2 copies
- Virion polymerase (RNA dependent DNA polymerase)
- 3.5-9 kb in size
What is the structure of the Coronaviridae?
- Helical capsid
- Enveloped
- (+)ssRNA continuous genome
- 16-21 kb in size
What is the structure of the Filoviridae?
- Helical capsid
- Enveloped
- (-)ssRNA continuous genome
- Has a virion polymerase
- 12.7 kb in size
What is the structure of the Rhabdoviridae?
- Helical capsid
- Enveloped
- (-)ssRNA continuous genome
- Has a virion polymerase
- 13-16 kb in size
What is the structure of the Bunyaviridae
- Helical capsid
- Enveloped
- (-)ssRNA segmented genome
- Has a virion polymerase
- 13.5-21 kb in size
What is the structure of the Orthomyxoviridae?
- Helical capsid
- Enveloped
- (-)ssRNA segmented genome (8)
- Has a virion polymerase
- 13.6 kb in size
What is the structure of the Paramyxoviridae?
- Helical capsid
- Enveloped
- (-)ssRNA continuous genome
- Has a virion polymerase
- 16-20 kb in size
What are your DNA viruses?
They include Parvo, Papova, Adeno, Hepadna, Herpes and Pox.
What are your icosahedral DNA viruses?
Parvo, Papova, Adeno, Hepadna and Herpes.
What is the structure of the Poxvirus?
No it is complex, enveloped (cytoplasmic) and contains dslinear DNA (X linked).
What are your naked, icosahedral viruses?
Parvovirus, Papovavirus, Adenovirus.
What are your enveloped, icosahedral viruses?
Hepadna and Herpes.
What is the structure of the Parvoviridae?
This is sslinear DNA that can be - or +and there is no virion polymerase. It is 5 kb in size.
What is the structure of the Papovaviridae?
It is dscircular DNA, does not have a virion polymerase and is 5-8 kb in size.
What is the structure of the Adenovirus?
It is dslinear DNA that, does not have a virion polymerase and is 36-38kb.
What is the structure of the Hepadnavirus?
It is ds-circle gapped DNA that does contain a virion polymerase and is 3.2 kb in size.
What is the structure of the Herpesvirus?
It is ds linear DNA, does not contain a virion polymerase and is 120-200 kb in size.
What are examples of the Papovaviruses?
SV40 and HPV.
What are examples of the Retroviruses?
HIV and HBV uses reverse transcriptase as well.
What are examples of Paramyxoviridae?
Measles and mumps.
