Relative Replication Fitness of a High-Level 3′-Azido-3′-Deoxythymidine-Resistant Variant of Human Immunodeficiency Virus Type 1 Possessing an Amino Acid Deletion at Codon 67 and a Novel Substitution (Thr→Gly) at Codon 69

Abstract excerpt

The combination of an amino acid deletion at codon 67 (delta 67) and Thr-to-Gly change at codon 69 (T69G) in the reverse transcriptase (RT) of human immunodeficiency virus type 1 (HIV-1) is associated with high-level resistance to multiple RT inhibitors. To determine the relative contributions of the delta 67 and T69G mutations on viral fitness, we performed a series of studies of HIV replication using...

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