YADD mutants of human immunodeficiency virus type 1 and Moloney murine leukemia virus reverse transcriptase are resistant to lamivudine triphosphate (3TCTP) in vitro.

@article{Boyer2001YADDMO,
  title={YADD mutants of human immunodeficiency virus type 1 and Moloney murine leukemia virus reverse transcriptase are resistant to lamivudine triphosphate (3TCTP) in vitro.},
  author={Paul L. Boyer and Hong Qiang Gao and Patrick K. Clark and Stefan G. Sarafianos and Eddy Arnold and Stephen H. Hughes},
  journal={Journal of virology},
  year={2001},
  volume={75 14},
  pages={6321-8}
}
When human immunodeficiency virus type 1 (HIV-1) is selected for resistance to 3TC, the methionine normally present at position 184 is replaced by valine or isoleucine. Position 184 is the X of the conserved YXDD motif; positions 185 and 186 form part of the triad of aspartic acids at the polymerase active site. Structural and biochemical analysis of 3TC-resistant HIV-1 reverse transcriptase (RT) led to a model in which a beta-branched amino acid at position 184 would act as a steric gate… CONTINUE READING

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