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    • 2. 发明授权
    • Hepadnavirus cores
    • 肝炎病毒核心
    • US06518014B1
    • 2003-02-11
    • US08890735
    • 1997-07-11
    • Maria SeiferRobert HamatakeDavid N. Standring
    • Maria SeiferRobert HamatakeDavid N. Standring
    • C07K1402
    • C12N7/00C12N2730/10023C12Q1/18
    • Provided in one embodiment is a non-infectious, recombinant hepadnavirus core particle composition comprising isolated hepadnavirus core particles, template RNA encapsidated in the same core particles and hepadnavirus polymerase encapsidated in the same core particles, wherein, upon addition of deoxynucleoside triphosphates to the composition, the hepadnavirus polymerase incorporates deoxynucleotides from the added deoxynucleosides into reverse transcripts of the template RNA beginning with the first deoxynucleotide of the reverse transcript or within about 10 deoxynucleotides of the first deoxynucleotide of the reverse transcript. Another embodiment provides hapadnaviral core particles with all three functional components: (1) P; (2) C; and (3) a nucleic acid that serves as a template. These core particles include for example (a) recombinant, insect-cell-derived core particles, (b) core particles produced in cells contacted with a reverse transcriptase inhibitor, and (c) core particles that are especially suitable for assays for (+)-strand synthesis.
    • 在一个实施方案中提供了一种非感染性重组肝炎病毒核心颗粒组合物,其包含分离的肝炎病毒核心颗粒,包裹在相同核心颗粒中的模板RNA和包裹在相同核心颗粒中的肝炎病毒聚合酶,其中在向组合物中加入脱氧核苷三磷酸时, 肝炎病毒聚合酶将来自加入的脱氧核苷的脱氧核苷酸引入模板RNA的逆转录物,从逆转录物的第一脱氧核苷酸开始,或在逆转录物的第一脱氧核苷酸的约10个脱氧核苷酸内。 另一个实施方案提供了具有所有三种功能组分的半脱乙酰病毒核心颗粒:(1)P; (2)C; 和(3)作为模板的核酸。 这些核心颗粒包括例如(a)重组的昆虫细胞衍生的核心颗粒,(b)在与逆转录酶抑制剂接触的细胞中产生的核心颗粒,和(c)特别适用于(+) 品牌综合。