title: [Subtype and sequence analysis of the C2-V3 region of gp120 genes among HIV-1 strains in Hubei province].
abstract: Twenty DNA fragments of HIV-1 env gene were amplified by PCR from uncultured peripheral blood mononuclear cells (PBMCs) obtained from HIV-1 sero-positive people from Hubei province in the end of 1996. The C2-V3 region (about 450 bp) was sequenced. Sequence analyses showed that all of them were HIV-1 subtypes, B strain, with 1.9% gene divergence innergroup. The 20 subtype B strains, compared with sequences of several reference HIV-1 strains, were closely related to those found in Thailand, Myanma and Yunnan and other provinces in China. The nucleotide sequence divergence between them ranged from 1.9% to 3.2%. These results suggested that recent epidemic of B subtype HIV-1 strains in Hubei province and the responsible virus were very close to those identified in Yunnan province.
authors.affiliation: Hubei Sanitation and Anti-epidemic Station, Wuhan.
authors.forename: Y W
authors.initials: YW
authors.lastname: Li
authors.forename: Y M
authors.initials: YM
authors.lastname: Shao
authors.forename: X G
authors.initials: XG
authors.lastname: Luo
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000821:virology*; D002681:China / Q000453:epidemiology; D015699:HIV Envelope Protein gp120 / Q000235:genetics*; D015497:HIV-1 / Q000145:classification / Q000235:genetics*; D006801:Humans; D017422:Sequence Analysis, DNA
chemical_list: D015699:HIV Envelope Protein gp120