Polypeptide originating in haemophilus paragallinarum and process for producing the same
    2.
    发明授权
    Polypeptide originating in haemophilus paragallinarum and process for producing the same 失效
    源自嗜血杆菌的多肽及其制备方法

    公开(公告)号:US06544519B1

    公开(公告)日:2003-04-08

    申请号:US09077098

    申请日:1998-05-19

    IPC分类号: A61K3938

    摘要: A novel peptide obtained from Haemophilus paragallinarum has been found useful for preventing avian infectious coryza. This polypeptide induces production of hemagglutination-inhibition antibody and prevents infection and onset of avian infectious coryza. The invention further provides a gene coding for the polypeptide, a recombinant vector for expression of this gene, a host transformed with this vector, a process for preparing the polypeptide in a host, a vaccine for avian infectious coryza comprising the polypeptide as an active ingredient, a monoclonal antibody obtained using the polypeptide as an immunogen, and a diagnostic agent and a therapeutic agent for avian infectious coryza using the peptide and the antibody.

    摘要翻译: 已经发现从嗜血杆菌获得的新肽可用于预防禽传染性鼻炎。 该多肽诱导血细胞凝集抑制抗体的产生并防止禽传染性鼻炎的感染和发作。 本发明还提供了编码该多肽的基因,用于表达该基因的重组载体,用该载体转化的宿主,在宿主中制备该多肽的方法,用于禽传染性鼻炎的疫苗,其包含该多肽作为活性成分 ,使用该多肽作为免疫原获得的单克隆抗体,以及使用该肽和抗体的诊断剂和禽类感染性鼻炎的治疗剂。

    Method for purification of HBs antigen
    9.
    发明授权
    Method for purification of HBs antigen 失效
    HBs抗原纯化方法

    公开(公告)号:US4738926A

    公开(公告)日:1988-04-19

    申请号:US709711

    申请日:1985-03-08

    摘要: Industrially useful method for the purification of HBs antigen produced by a recombinant organism being capable of producing HBs antigen which is prepared by means of DNA recombination technique, which comprises subjecting an HBs antigen-containing material produced by a recombinant organism to an adsorption chromatography with a silica, optionally followed by a gel filtration and further an adsorption chromatography with a hydroxyapatite, and then eluting the HBs antigen, preferably, with a buffer having a pH 9 or more which is incorporated with urea. The purification method can give a highly pure HBs antigen suitable for the preparation of hepatitis B vaccine in a large scale from recombinant organisms prepared by DNA recombination technique.

    摘要翻译: 能够产生通过DNA重组技术制备的HBs抗原产生的HBs抗原产生的工业上有用的方法,该方法包括使由重组生物产生的含HBs抗原的材料进行吸附色谱, 二氧化硅,任选地随后进行凝胶过滤,并进一步用羟基磷灰石进行吸附色谱,然后优选用与尿素结合的pH9或更高的缓冲液洗脱HBs抗原。 纯化方法可以通过DNA重组技术制备重组生物体,从而大规模制备适合于乙型肝炎疫苗制备的高纯度HBs抗原。