Document 0705 DOCN M9440705 TI Inhibitors of HIV-1 reverse transcriptase and fidelity of in vitro DNA replication. DT 9404 AU Abbotts J; Wilson SH; Laboratory of Biochemistry, National Cancer Institute, National; Institutes of Health, Bethesda, Maryland 20892. SO J Enzym Inhib. 1992;6(1):35-46. Unique Identifier : AIDSLINE MED/94132921 AB Mechanisms of the effects of the dTTP analogues 3'-azido-3'-deoxythymidine 5'-triphosphate (AZTTP) and 3'-amino-3'-deoxythymidine 5'-triphosphate (NH2 TTP) upon the HIV-1 reverse transcriptase (RT) are discussed. These compounds block the RT in vitro and do so by different kinetic mechanisms. Infidelity of replication is a hallmark of the HIV-1 RT, and replication errors by the enzyme on RNA and DNA templates are discussed. The enzyme's infidelity has ramifications for inhibition: On the one hand, the propensity to produce mutations enhances the ability of the virus to escape inhibitors whereas on the other hand, the infidelity of the reverse transcriptase may allow the development of imaginative inhibitor strategies. DE Dideoxynucleosides/PHARMACOLOGY *DNA Replication HIV-1/*ENZYMOLOGY Reverse Transcriptase/*ANTAGONISTS & INHIB Support, U.S. Gov't, P.H.S. Thymine Nucleotides/*PHARMACOLOGY Virus Replication Zidovudine/*ANALOGS & DERIVATIVES/PHARMACOLOGY JOURNAL ARTICLE REVIEW REVIEW, TUTORIAL SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).