Biological and molecular characterization of human immunodeficiency virus (HIV-1BR) from the brain of a patient with progressive dementia
1989; Elsevier BV; Volume: 168; Issue: 1 Linguagem: Inglês
10.1016/0042-6822(89)90406-6
ISSN1096-0341
AutoresR Anand, Richard M. Thayer, Arjun Srinivasan, S. Nayyar, Murray B. Gardner, Paul A. Luciw, Satya Dandekar,
Tópico(s)HIV/AIDS Research and Interventions
ResumoHIV-1BR was isolated from the autopsied brain tissue of a 57-year-old man who died of progressive dementing illness. This virus was shown to be HIV-1 by hybridization to HIV-specific DNA probes. The expression of viral proteins as tested by radioimmunoprecipitation assay revealed the presence of HIV-1-specific proteins. HIV-1BR replicated in cultures of CD4+ T-lymphoid cells and induced cytopathic effects in these cells. HIV-1BR also replicated in monocytoid cell lines. The genetic nature of this isolate was determined by molecular cloning and sequencing of the 3'-half of the genome. DNA sequence information established that HIV-1BR is a unique HIV-1 isolate. A stretch of approximately 30 bases in the nef gene of HIV-1BR was found duplicated when compared with the other sequenced HIV-1 genomes. The functional significance of this duplication remains to be determined.
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