The same mutation that encodes low-level human immunodeficiency virus type 1 resistance to 2',3'-dideoxyinosine and 2',3'-dideoxycytidine confers high-level resistance to the (-) enantiomer of 2',3'-dideoxy-3'-thiacytidine | Zendy

Qing Gao | Zendy; Zhenyong Gu | Zendy; Michael A. Parniak | Zendy; J. M. Cameron | Zendy; N. Cammack | Zendy; Charles A. Boucher | Zendy; Mark A. Wainberg | Zendy

Open Access

The same mutation that encodes low-level human immunodeficiency virus type 1 resistance to 2',3'-dideoxyinosine and 2',3'-dideoxycytidine confers high-level resistance to the (-) enantiomer of 2',3'-dideoxy-3'-thiacytidine

Author(s) -

Qing Gao,

Zhenyong Gu,

Michael A. Parniak,

J. M. Cameron,

N. Cammack,

Charles A. Boucher,

Mark A. Wainberg

Publication year - 1993

Publication title -

antimicrobial agents and chemotherapy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.07

H-Index - 259

eISSN - 1070-6283

pISSN - 0066-4804

DOI - 10.1128/aac.37.6.1390

Subject(s) - virology , zalcitabine , mutation , biology , human immunodeficiency virus (hiv) , drug resistance , genetics , zidovudine , gene , viral disease

Variants of human immunodeficiency virus type 1 that display 500- to 1,000-fold resistance to the (-) enantiomer of 2'-deoxy-3'-thiacytidine and approximately 4- to 8-fold resistance to 2',3'-dideoxycytidine and 2',3'-dideoxyinosine have been generated through in vitro selection with the former compound. The polymerase regions of several of these resistant viruses shared a codon alteration at site 184 (ATG-->GTG; methionine-->valine), a mutation previously associated with low-level resistance to 2',3'-dideoxycytidine. The biological relevance of this mutation for the (-) enantiomer of 2'-deoxy-3'-thiacytidine was confirmed by site-directed mutagenesis with the HXB2-D clone of human immunodeficiency virus type 1.

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