title: Full-length genomic sequencing and analysis of four HIV type 1 subtype B isolates circulating in the territory of Russia.
abstract: We describe four full-length genomic sequences of HIV-1 subtype B isolates from Russia. These full-length HIV-1 genomes were amplified by nested polymerase chain reaction and sequenced. The sequences obtained were subjected to neighbor-joining phylogenetic analysis using a Kimura two-parameter model and to detailed sequence analysis. Comparison of the sequences obtained with 68 near full-length HIV-1 subtype B sequences from different geographic regions of the world revealed that isolates from Russia did not cluster significantly with other subtype B genomes. Sequences AY819715 and AY751407 significantly formed one cluster, which indicates their close similarity. The HIV-1 genomes obtained from Russia did not form a distinct homogeneous group inside subtype B. Their genetic diversity probably reflects the result of multiple introduction events of different subtype B strains to Russia. Sequences AY819715 and AY751406 possess some features of viruses from long-term survivors, such as specific extensions of the Env V2 region.
authors.affiliation: Advanced Biomedical Researches Laboratory, Moscow 115446, Russia. Galkin_1@mail.ru
authors.forename: Alexander N
authors.initials: AN
authors.lastname: Galkin
authors.forename: Ekaterina Y
authors.initials: EY
authors.lastname: Gagarina
authors.forename: Natalia S
authors.initials: NS
authors.lastname: Lukyanova
authors.forename: Tatyana V
authors.initials: TV
authors.lastname: Danilova
mesh_terms: D005260:Female; D016679:Genome, Viral; D015658:HIV Infections / Q000453:epidemiology* / Q000821:virology*; D015497:HIV-1 / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008969:Molecular Sequence Data; D010802:Phylogeny; D012426:Russia / Q000453:epidemiology