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108 Cards in this Set

  • Front
  • Back

Polymviridae (class)

dsDNA

Adenoviridae (class)

dsDNA

Poxviridae (class)

dsDNA

Hepadna viruses (class)

Gapped ssDNA

Paroviridae (class)

ssDNA

Reoviridae (class)

dsRNA

Poliovirus (class)

+ssRNA

Retroviridae (class)

+ssRNA with DNA intermediate

Orthomyxoviridae (class)

-ssRNA

Filoviridae

-ssRNA

~80% of North Americans are infected asymptatically

JCV > polymaviridae

Two dsDNA virus families that rely on host RNA polymerase

Polymaviridae and Adenoviridae

dsDNA virus family that uses it's own RNA pol

Poxviridae

Causes infections in cats and dogs (family and class)

Paroviridae > ssDNA

Most important cause of gastroenteritis in developing world

Reoviridae (dsRNA)

Cause mucosal infections (including influenza)

Orthomyoviridae

What is the significance of the L-protein?

Found in Ebola > it's the RNA dependent RNA pol (-ssRNA genome)

Is Ebola enveloped?

Yes

Is Ebola enveloped?

Yes

What receptor does Ebola recognize in what structure?

NPC-1 in late endosome

What type of symmetry does the measles virus exhibit?

Helical

Host receptor for measles

CD46

Is polio enveloped? How does it become encapsulated?

No > 5 folded and cleaved P1 peptides (VP1/2/3/4) come together to form pentamere, 12 pentamere a to form capsid

How does poliovirus enter cells?

VP1 N-termini conformational change @ PM to inject +ssRNA genome directly

Is influenza enveloped?

Yes

Influenza glycoprotein ____ interacts with ______

Hemagglutinin > solace acid with 2-6 linkages preferrably

What symmetry does the Norwalk virus have?

Quasiequivalent isosahedral geometry (180 identical subunits)

The 2 viruses from the flaviridae family

Dengue and west Nile

The 2 viruses from the flaviridae family

Dengue and west Nile

Flaviridae (class)

+ssRNA READY TO GO

Dengue virus fusion protein is activated in _____

Late endosome

Does west Nile have an envelope?

Yes

Virus family that enter nucleus using microtubules

Herpesviridae

Flaviridae (class) envelope?

+ssRNA READY TO GO (envelope +)

Viremia

Presence of visions in the blood

Viremia

Presence of visions in the blood

Primary viremia

Progeny visions released in blood after initial replication at site of entry

Viremia

Presence of visions in the blood

Primary viremia

Progeny visions released in blood after initial replication at site of entry

Secondary viremia

Delayed appearance of visions in blood

pH of skin

5.5

West Nile gains access to

Vascularized dermis

Rhinovirus causes

Common cold

Rhinovirus causes

Common cold

Reoviruses (transmission method and envelope?)

Ailmentary and non-enveloped

Rhinovirus causes

Common cold

Reoviruses (transmission method and envelope?)

Ailmentary and non-enveloped

Rhinovirus (transmission method and envelope?)

Respiratory and enveloped

Influenza (transmission method and envelope?)

Respiratory via aerosols and enveloped

Adenoviruses (transmission and envelope?)

Conjunctiva and non-enveloped

Iatrogenic

Health care worker to patient

Nosocomial

Patient infected while in hospital

Vertical

Parent to offspring

Germline

Genomic transfer from parent to offspring

Horizontal

Transmission between two of the same or different species

Picornaviridae (disease it causes, class, transmission method and enveloped?)

HepA > +ssRNA > alimentary tract > nonenveloped

Picornaviridae (disease it causes, class, transmission method and enveloped?)

HepA > +ssRNA > alimentary tract > nonenveloped

Incubation time for HepA

30 days

Two emerging diseases in 1980's from AIDS

Pneumocytosis and kaposi sarcoma

HAART

Highly active antiretroviral therapy

HIV (family, subfamily, enveloped?)

Retroviridae > lentiviruses > enveloped

What cellular compartment does RT happen in?

Cytoplasm

What cellular compartment does RT happen in?

Cytoplasm

HIV-1 glycoproteins (and function)

gp120 (surface protein) and gp41 (fusion)

What cellular compartment does RT happen in?

Cytoplasm

HIV-1 glycoproteins (and function)

gp120 (surface protein) and gp41 (fusion)

HIV-1 capsid protein is called

p24

Host HIV-1 receptor and co-receptor proteins

CD4 and CCR5/CXCR4

Host HIV-1 receptor and co-receptor proteins

CD4 and CCR5/CXCR4

RT lacks what function

3' to 5' expo nuclear activity

Host HIV-1 receptor and co-receptor proteins

CD4 and CCR5/CXCR4

RT lacks what function

3' to 5' expo nuclear activity

Gag

Matrix and capsid proteins

Host HIV-1 receptor and co-receptor proteins

CD4 and CCR5/CXCR4

RT lacks what function

3' to 5' expo nuclear activity

Gag

Matrix and capsid proteins

Pol

Makes RT, integrase and protease for polyproteins

Group M stands for

Major

Group O stands for

Outlier

Most prevalent group of HIV-1 in the world

Group C

Most virulent group of HIV-1 in the world

Group D

Group CRF is found mainly in

Sex workers

Group CRF is found mainly in

Sex workers

96% of white homos in SA

Group B

Species of chimp responsible for transmitting HIV-1 to humans

Pan tryglodytes tryglodytes

Calcivirus infects

Whales

Calcivirus infects

Whales

Calcivirus causes

Gastroenteritis and rashes

HERVs

Endogenous retroviruses

What percentage of our genome is derived from HERVs?

10%

Herpes in Latin means

To creep or crawl

The time it takes to assemble the vision before any new visions have been assembled

Latent period

The time during which infectivity disappears

Eclipse

The time during which there is assembly of genome and viral protein

Maturation period

Cell that contains a functional receptor for a virus to attach to is called

Susceptible

A cell that allows the virus to replicate is called

Permissive

Fusion of adjacent PNs that results in multinucleated cells

Synctia

Cells are no longer flat but divide uncontrollably to form foci

Transformation

Adenovirus receptors

CAR and integrin

The lower a particle to PFU ratio, the _____ infectious a virus is

More

The larger the diameter of the RBCs in a hemagglutination assay, the _____ amount of virus

Less

Viral enzyme activity assays can only be done for

Retroviruses

Radioactive _____ was found in second generation of cells in Hershey chase experiments

Phosphorous

mRNA is read by ribosomes in the _____ direction

5' to 3'

+ssRNA viruses need a _____ polymerase

DNA dependent RNA polymerase

HepB has a ___ particle to PFU ratio

Low > it's very infectious

Rhinovirus host receptor

LDL receptor

Poliovirus receptor

PVR