Introduction: Could the previously observed 130-fold resistance of the
P119S/
T165A/
M184V virus to 4'-ethynylstavudine be due to additional mutations in the
RT and/or outside the
RT sequence, or that this virus is either difficult to recover from storage due to a poor replication capacity? Based on recent studies and the structural modeling of interaction of HIV
RT-primer complex and 4'-Ed4TTP, a virus with a high degree of resistance to 4'-ethynylstavudine (e.g., more that 50-fold resistance, highly resistant to 4'-ethynylstavudine) will be difficult to develop.
Introduction: When the previous HIV resistant strain (
P119S/
T165A/
M184V), with 130-fold resistance to 4'-ethynylstavu