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32 Cards in this Set
- Front
- Back
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7 Viral Classification Groups
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1. dsDNA
2. ssDNA 3. dsRNA 4. (+) Sense ssRNA 5. (-) Sense ssRNA 6. (+) Sense ssRNA w/ DNA Intermediate 7. dsDNA w/ RNA Intermediate |
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Class 1: dsDNA
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2 Groups: Nuclear Replication (NR) and Cytoplasmic Replication (CR)
NR = Dependent on Cellular Factors CR = Independent of Cellular Factors |
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Class 2: ssDNA
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Nuclear Replication
Double Stranded Intermediate which serves as a template for synthesis of ss progeny DNA |
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Class 3: dsRNA
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Segmented Genomes
Each Segment Transcribed Separately for Individual Monocistronic mRNAs |
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Class 4: (+) Sense ssRNA
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2 Groups: Polycistronic mRNA
Complex Transcription |
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Class 5: (-) Sense ssRNA
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2 Groups: Non-Segmented and Segmented Genomes
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Class 6: (+) Sense ssRNA w/ DNA Intermediate
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Retrovirus Genome
Relies on Reverse Transcriptase |
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Class 7: dsDNA w/ RNA Intermediate
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Relies on Reverse Transcriptase
Occurs Inside the Particle During Maturation |
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Plasmaviridae
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Hosts: Mycoplasma
Example: Bacteriophage L2 Genome Segments: 1 Topology: Circular Symmetry: Asymmetric Envelope: Yes |
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Siphoviridae
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Hosts: Bacteria and Archaea
Example: Bacteriophage Lambda Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Tailed Envelope: No |
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Myoviridae
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dsDNA
Hosts: Bacteria and Archaea Example: Bacteriophage T4 Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Tailed Envelope: No |
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Mimivirus
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dsDNA
Hosts: Protozoa (Amoeba) Example: Acanthamoeba polyphaga mimivirus Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: Internal |
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Papillomaviridae
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dsDNA
Hosts: Vertebrates Example: HPV 16 Genome Segments: 1 Topology: Circular Symmetry: Helical Envelope: Yes |
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Adenoviridae
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dsDNA
Hosts: Vertebrates Example: Human adenovirus 5 Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: No |
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Herpesviridae
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dsDNA
Hosts: Vertebrates Example: HSV I Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: Yes |
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Poxviridae
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dsDNA
Hosts: Vertebrates/Invertebrates Example: Variola (Smallpox) Genome Segments: 1 Topology: Linear Symmetry: Complex Envelope: Yes |
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Only 2 Circular dsDNA Genome Viruses
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Plasmaviridae and Papillomaviridae
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Only 2 dsDNA Viruses Not Icosahedral
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Plasmaviridae and Poxviridae
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Inoviridae
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ssDNA
Hosts: Bacteria Example: Bacteriophage M13 Genome Segments: 1 Topology: Circular Symmetry: Helical Envelope: No |
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Parvoviridae
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ssDNA
Hosts: Vertebrates/Invertebrates Example: Adeno-Associated Virus Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: No |
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Cystoviridae
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dsRNA
Hosts: Bacteria Example: Bacteriophage phi6 Genome Segments: 3 Topology: Linear Symmetry: Icosahedral Envelope: Yes |
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Reoviridae
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Respiratory Enteric Virus (REV)
dsRNA Hosts: Vertebrates/Invertebrates/ Plants/Fungi Example: Rotavirus A (Leading Child Death by Diarrhea) Genome Segments: 10-12 Topology: Linear Symmetry: Icosahedral Envelope: No |
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Cornaviridae
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(+) Sense ssRNA
Hosts: Vertebrates Example: SARS-cornavirus Genome Segments: 1 Topology: Linear Symmetry: Helical Envelope: Yes |
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Picornaviridae
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(+) Sense ssRNA
Hosts: Vertebrates Example: Poliovirus Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: No |
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Flaviviridae
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(+) Sense ssRNA
Hosts: Vertebrates/Invertebrates Example: Yellow Fever Virus Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: Yes |
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Togaviridae
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(+) Sense ssRNA
Hosts: Vertebrates/Invertebrates Example: Semliki Forest Virus Genome Segments: 1 Topology: Linear Symmetry: Icosahedral Envelope: Yes |
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Ophiovirus
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(-) Sense ssRNA
Hosts: Plants Example: Citrus Psorosis Virus Genome Segments: 3-4 Topology: Linear Symmetry: Helical Envelope: No |
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Arenaviridae
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(-) Sense ssRNA
Hosts: Vertebrates Example: Lassa Fever Virus Genome Segments: 2 Topology: Linear Symmetry: Helical Envelope: Yes |
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Orthomyxoviridae
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(-) Sense ssRNA
Hosts: Vertebrates/Invertebrates Example: Influenza A Virus Genome Segments: 6-8 Topology: Linear Helical Yes Symmetry: Envelope: |
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Rhabdoviridea
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(-) Sense ssRNA
Hosts: Vertebrates/Invertebrates/ Plants Example: Rabies Virus Genome Segments: 1 Topology: Linear Symmetry: Helical Envelope: Yes |
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Paramyxoviridae
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(-) Sense ssRNA
Hosts: Vertebrates Example: Measles Virus Genome Segments: 1 Topology: Linear Symmetry: Helical Envelope: Yes |
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Filoviridae
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(-) Sense ssRNA
Hosts: Vertebrates Example: Ebola Virus Genome Segments: 1 Topology: Linear Symmetry: Helical Envelope: Yes |
