Peptides of human immunodeficiency virus type 2 (HIV-2), antibodies against peptides of HIV-2, and methods and kits for detecting HIV-2
    7.
    发明授权
    Peptides of human immunodeficiency virus type 2 (HIV-2), antibodies against peptides of HIV-2, and methods and kits for detecting HIV-2 失效
    人类免疫缺陷病毒2型(HIV-2)env多肽和使用所述肽的诊断测定

    公开(公告)号:US06514691B1

    公开(公告)日:2003-02-04

    申请号:US09191384

    申请日:1998-11-13

    Abstract: This invention is directed toward the isolation of a novel retrovirus, the human immune deficiency virus type 2 (HIV-2, previously named LAV-2), from patients with acquired immune deficiency syndrome (AIDS) originating from West Africa. This virus is related to HIV-1, the causative agent of AIDS, both by its morphology and by its tropism and in vitro cytopathic effect on CD4 (T4) positive cell lines and lymphocytes. However, preliminary hybridization experiments indicated that there are substantiated differences between the sequences of the two genomes. Furthermore, the proteins of HIV-1 and HIV-2 have different sizes and their serological cross-reactivity is restricted to the major core protein, as the envelope glycoproteins of HIV-2 are not immunoprecipitated by HIV-1 positive sera. Overlapping molecular clones were obtained and the complete nucleotide sequence of the gag and env genes was ascertained. An antigenic envelope polypeptide having the following amino acid sequence was identified: NH2-VTAIEKYLEDQARLNSWGCAFRQVC-COOH. The peptide is useful for the detection of HIV-2-specific immunological reagents.

    Abstract translation: 本发明针对来自西非的获得性免疫缺陷综合征(AIDS)患者的新型逆转录病毒,2型免疫缺陷病毒(HIV-2,以前称为LAV-2))的分离。 这种病毒与HIV-1(艾滋病的致病因子)有关,其形态以及其对CD4(T4)阳性细胞系和淋巴细胞的向性和体外细胞病变作用。 然而,初步杂交实验表明,两个基因组的序列之间存在证实的差异。 此外,HIV-1和HIV-2的蛋白质具有不同的大小,并且其血清学交叉反应性限于主要核心蛋白质,因为HIV-2的包膜糖蛋白不被HIV-1阳性血清免疫沉淀。 获得重叠的分子克隆,并确定了gag和env基因的完整核苷酸序列。 鉴定了具有以下氨基酸序列的抗原性包膜多肽:NH2-VTAIEKYLEDQA​​RLNSWGCAFRQVC-COOH。 该肽可用于检测HIV-2特异性免疫试剂。

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