Oncogenic viruses Flashcards
E2
HPV gene
dampens expression of E6 and E7
E6
HPV gene
p53 degradation
E7
HPV gene
inactivates Rb
HPV permissive cells
virus infects cells and leads to a lytic cycle
HPV nonpermissive cells
does not lead to productive infection of the virus
can its make genome but missing something needed for structural proteins for infection
low risk: warts
high risk: cancer
Tax gene
leads to degradation of IkB by phosphorylation
Cip
CdK inhibitor
Ink4
CdK inhibitor
KSHV
produces v-cyclin that constitutively activates CdK6 by making it immune to Cip or Ink4
LMP-1
EBV transmembrane protein
activates kinase cascade that localizes NF-kB to nucleus in B-cells, leading to immortilization
HTLV-1
infects and transforms CD4 T cells