Differential incorporation and removal of antiviral deoxynucleotides by human DNA polymerase γ

SE Lim, WC Copeland - Journal of Biological Chemistry, 2001 - ASBMB
Mitochondrial toxicity can result from antiviral nucleotide analog therapy used to control
human immunodeficiency virus type 1 infection. We evaluated the ability of such analogs to …

Toxicity of antiviral nucleoside analogs and the human mitochondrial DNA polymerase

AA Johnson, AS Ray, J Hanes, Z Suo… - Journal of Biological …, 2001 - ASBMB
To examine the role of the mitochondrial polymerase (Pol γ) in clinically observed toxicity of
nucleoside analogs used to treat AIDS, we examined the kinetics of incorporation catalyzed …

Relationship between antiviral activity and host toxicity: comparison of the incorporation efficiencies of 2′, 3′-dideoxy-5-fluoro-3′-thiacytidine-triphosphate analogs …

JY Feng, E Murakami, SM Zorca… - Antimicrobial agents …, 2004 - Am Soc Microbiol
ABSTRACT Emtricitabine [(−) FTC;(−)-β-l-2′-3′-dideoxy-5-fluoro-3′-thiacytidine] is an
oxathiolane nucleoside analog recently approved by the Food and Drug Administration for …

Insights into the molecular mechanism of mitochondrial toxicity by AIDS drugs

JY Feng, AA Johnson, KA Johnson… - Journal of Biological …, 2001 - ASBMB
Several of the nucleoside analogs used in the treatment of AIDS exhibit a delayed clinical
toxicity limiting their usefulness. The toxicity of nucleoside analogs may be related to their …

Toxicity of nucleoside analogues used to treat AIDS and the selectivity of the mitochondrial DNA polymerase

H Lee, J Hanes, KA Johnson - Biochemistry, 2003 - ACS Publications
Incorporation of nucleoside analogues by the mitochondrial DNA polymerase has been
implicated as the primary cause underlying many of the toxic side effects of these drugs in …

Efficient incorporation of anti-HIV deoxynucleotides by recombinant yeast mitochondrial DNA polymerase

S Eriksson, B Xu, DA Clayton - Journal of Biological Chemistry, 1995 - ASBMB
Saccharomyces cerevisiae mtDNA polymerase, isolated as a single 135-kDa recombinant
polypeptide, showed high processivity and a capacity to use poly (dA)• oligo (dT), poly (rA)• …

Structural determinants in human DNA polymerase γ account for mitochondrial toxicity from nucleoside analogs

SE Lim, MV Ponamarev, MJ Longley… - Journal of molecular …, 2003 - Elsevier
Although antiviral nucleoside analog therapy successfully delays progression of HIV
infection to AIDS, these drugs cause unwelcome side-effects by inducing mitochondrial …

Effects of antiviral nucleoside analogs on human DNA polymerases and mitochondrial DNA synthesis

JL Martin, CE Brown, N Matthews-Davis… - Antimicrobial agents …, 1994 - Am Soc Microbiol
Inhibition constants were determined for 16 nucleoside analog triphosphates against human
DNA polymerases alpha, beta, gamma, and epsilon, and 7 nucleoside analogs were …

[HTML][HTML] Human DNA polymerases alpha and beta are able to incorporate anti-HIV deoxynucleotides into DNA.

WC Copeland, MS Chen, TS Wang - Journal of Biological Chemistry, 1992 - Elsevier
Deoxynucleoside analogs, AZT and/or ddN, are the therapeutic agents currently utilized to
inhibit the human immunodeficiency virus (HIV) reverse transcriptase. The effects of their …

[HTML][HTML] Selective action of 2', 3'-didehydro-2', 3'-dideoxythymidine triphosphate on human immunodeficiency virus reverse transcriptase and human DNA …

P Huang, D Farquhar, W Plunkett - Journal of Biological Chemistry, 1992 - Elsevier
This study used DNA primer extension and sequencing gel analyses to evaluate the
molecular action of 2', 3'-didehydro-2', 3'-dideoxythymidine triphosphate (D4TTP), in …