title: An infectious molecular clone of an unusual macrophage-tropic and highly cytopathic strain of human immunodeficiency virus type 1.
abstract: We isolated and molecularly cloned a human immunodeficiency virus type 1 (HIV-1) strain (89.6) which is unusual because it is both macrophage-tropic and extremely cytopathic in lymphocytes. Moreover, this is the first well-characterized infectious molecularly cloned macrophage-tropic HIV-1 strain derived from peripheral blood. HIV-1 89.6 differs markedly from other macrophage-tropic isolates within the envelope V3 region, which is important in determining cell tropism and cytopathicity. HIV-1 89.6 may thus represent a transitional isolate between noncytopathic macrophage-tropic viruses and cytopathic lymphocyte-tropic viruses.
authors.affiliation: Division of Pulmonary and Critical Care, University of Pennsylvania School of Medicine, Philadelphia 19104.
authors.forename: R
authors.initials: R
authors.lastname: Collman
authors.forename: J W
authors.initials: JW
authors.lastname: Balliet
authors.forename: S A
authors.initials: SA
authors.lastname: Gregory
authors.forename: H
authors.initials: H
authors.lastname: Friedman
authors.forename: D L
authors.initials: DL
authors.lastname: Kolson
authors.forename: N
authors.initials: N
authors.lastname: Nathanson
authors.forename: A
authors.initials: A
authors.lastname: Srinivasan
mesh_terms: D000595:Amino Acid Sequence; D002460:Cell Line; D003001:Cloning, Molecular / Q000379:methods*; D004279:DNA, Viral / Q000235:genetics / Q000302:isolation & purification; D005814:Genes, Viral; D016325:HIV Long Terminal Repeat; D015497:HIV-1 / Q000235:genetics* / Q000302:isolation & purification / Q000502:physiology*; D006801:Humans; D008264:Macrophages / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D015183:Restriction Mapping; D017386:Sequence Homology, Amino Acid; D013601:T-Lymphocytes; D014764:Viral Proteins / Q000235:genetics; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins