Abstract: At the end of the selection experiments, viruses harbouring 10 mutations in the
protease (
L10F,
I13V,
V32I,
L33F,
M36I,
K45I,
I54V,
A71V,
V82L,
I84V) as well as a mutation in the
CA/
SP1 gag cleavage site were selected and showed 87-fold decreased susceptibility to tipranavir.