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    • 8. 发明申请
    • OUTER MEMBRANE PROTEIN P1 AND PEPTIDES OF HAEMOPHILUS INFLUENZAE TYPE B
    • 外膜蛋白P1和HAEMOPHILUS流感病毒B型胶原蛋白
    • WO1991006652A1
    • 1991-05-16
    • PCT/CA1990000374
    • 1990-10-31
    • CONNAUGHT LABORATORIES LIMITEDWASHINGTON UNIVERSITY, ST. LOUISMUNSON, Robert, S., Jr.GRASS, SusanCHONG, PeleYANG, Yan-PingFAHIM, RaafatSTA, Dwo, Yan, CharlesMcVERRY, PatrickKLEIN, Michel
    • CONNAUGHT LABORATORIES LIMITEDWASHINGTON UNIVERSITY, ST. LOUIS
    • C12N15/31
    • C07K14/285A61K39/00
    • The gene for outer membrane protein P1 of Haemophilus influenzae b is expressed in E. coli. Methods for expression and demonstration of the immunogenicity of recombinant P1 and portions thereof are disclosed, along with an improved method for the purification of P1. The nucleotide sequence of the P1 gene and the derived amino acid sequence of the P1 protein of Haemophilus influenzae type b are disclosed and the methods used to determine the same. Also disclosed are the methods used to clone and express the P1 gene as well as the purification protocol for the P1 gene products (recombinant P1 and P1 fusion proteins). Fourteen peptides are synthesized corresponding to specific sequences of the mature P1 protein. The use of the P1 protein as n immunogens for immunization against the disease caused by Haemophilus influenzae type b and the use of the protein as a carrier for conjugation with an oligosaccharide derived from Haemophilus to generate a potentially efficacious vaccine against the disease, are described. Also disclosed is the use of P1 peptide-conjugates as immunizing agents to elicit anti-Haemophilus influenzae type b antibodies.
    • 流感嗜血杆菌b的外膜蛋白P1的基因在大肠杆菌中表达。 公开了用于表达和证明重组P1及其部分的免疫原性的方法以及用于纯化P1的改进方法。 公开了P1型基因的核苷酸序列和B型流感嗜血杆菌的P1蛋白的衍生氨基酸序列,并且用于确定它们的方法。 还公开了用于克隆和表达P1基因的方法以及P1基因产物(重组P1和P1融合蛋白)的纯化方案。 对应于成熟P1蛋白的特异性序列合成14个肽。 描述了使用P1蛋白作为免疫原免疫针对由流感嗜血杆菌b型引起的疾病的免疫,以及使用蛋白质作为与源自嗜血杆菌的寡糖缀合的载体以产生针对该疾病的潜在有效疫苗。 还公开了使用P1肽缀合物作为免疫剂以引发抗流感嗜血杆菌b型抗体。