title: [New recombinant variant of human immunodeficiency virus of type 1, subtype envB/envA, isolated in Novosibirsk].
abstract: The nucleotide sequence of the variant of human immunodeficiency virus of type 1 (HIV-1), mostly widespread on the territory of the Novosibirsk region, was determined. The analysis of the nucleotide sequence confirmed that this variant belonged to HIV-1 of subtype A. The HIV-1 recombinant variant of subtype envB/envA with the recombination area within the second conservative region C2 of gene env, so far unknown, was detected and characterized. In HIV-1 the area at the beginning of gene env (5'-env) was found to belong to subtype B and the sequence at the end of gene env (3'-env), to subtype A. The analysis of the amino acid sequence of the third variable region of gene env demonstrated that the viruses under study belonged to macrophagotropic "slow/low" variants, characterized by low replication speed. The analysis of nucleotide sequences of the isolated variants of HIV-1 revealed their close genetic relationship with HIV-1 isolates circulating on the territory of Ukraine.
authors.forename: N M
authors.initials: NM
authors.lastname: Gashnikova
authors.forename: A V
authors.initials: AV
authors.lastname: Totmenin
authors.forename: E F
authors.initials: EF
authors.lastname: Bocharov
authors.forename: A G
authors.initials: AG
authors.lastname: Pokrovskiĭ
mesh_terms: D000595:Amino Acid Sequence; D015699:HIV Envelope Protein gp120 / Q000737:chemistry / Q000235:genetics; D015658:HIV Infections / Q000821:virology*; D015497:HIV-1 / Q000235:genetics* / Q000302:isolation & purification; D006801:Humans; D008969:Molecular Sequence Data; D010446:Peptide Fragments / Q000737:chemistry / Q000235:genetics; D011995:Recombination, Genetic; D016415:Sequence Alignment; D012800:Siberia
chemical_list: D015699:HIV Envelope Protein gp120; C059762:HIV envelope protein gp120 (305-321); D010446:Peptide Fragments