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    • 5. 发明公开
    • Method to improve mRNA translation and use thereof for production of platelet factor-4
    • 用于改善mRNA及其用于生产血小板因子的应用的翻译。4
    • EP0324556A2
    • 1989-07-19
    • EP89300128.9
    • 1989-01-06
    • NIPPON MINING COMPANY
    • Johnson, Paul H
    • C12N15/00C12P21/02
    • C12N15/62A61K38/00C07K14/522C07K2319/00C07K2319/75C12N15/67
    • The present invention provides a method to improve the expression of a poorly expressed recombinant protein, such as platelet factor 4, by constructing a gene fusion such that unfavorable secondary structure formed between the region of the messenger RNA specifying the recombinant protein and the region of the messenger RNA containing the ribosome binding site is disrupted. The gene fusion is constructed by inserting a DNA segment of sufficient length to disrupt unfavorable long-range fold­ing interactions which render the ribosome binding site inaccessible to ribosomes thereby interfering with the translation of mRNA. The invention further provides for the expression of recombinant platelet factor 4 and provides recombinant DNA vectors and methods for the bacterial production and recovery of said platelet factor 4.
    • 本发明提供了一个方法来改善过表达很差重组蛋白,颜色的表达:如血小板因子4,通过构建的基因融合搜索做的信使RNA指定重组蛋白的区域和的所述区域之间形成不利的二级结构 信使RNA含有核糖体结合位点被破坏。 基因融合是通过将足够长度的DNA片段以破坏不利远距离折叠相互作用其使得核糖体结合位点无法进入核糖体从而与mRNA的翻译干扰构成。 本发明进一步提供用于重组血小板因子4的表达,并提供的重组DNA载体和方法细菌生产和血小板因子的恢复所述第四
    • 6. 发明公开
    • Biologically active peptides
    • 生物生物志贺卡肽。
    • EP0324270A1
    • 1989-07-19
    • EP88312278.0
    • 1988-12-23
    • NIPPON MINING COMPANY LIMITED
    • Suzuki, NaoyoshiOsaki, Humio
    • C07K7/06A61K37/02
    • C07K14/4703A61K38/00
    • Biologically active peptides each having an activity to inhibit multiplication of toxoplasma and having a structure composed of amino acid sequence by the formula Gly-Glu-Glu-Glu-Glu-Glu; Glu-Glu-Glu-Glu-Glu; Asp-Asp-Asp-Asp-Asp; or Ala-Asp-Asp-Asp-Asp-Asp. These peptides are estimated to form active units or cores of Obioactin. The peptides may be applied in various dosage forms to human being and animals as immunoregulators against attack by toxoplasma, since they exhibit no specie specificity and have Toxo-GIF activities of 10 or more times on weight basis, and 40 or more time on molar basis, of that of the crude Obioactin.
    • 生物活性肽各自具有抑制弓形体增殖并具有由Gly-Glu-Glu-Glu-Glu-Glu-Glu的氨基酸序列构成的结构的活性; GLU-GLU-GLU-GLU-谷氨酸; ASP-ASP-ASP-ASP-ASP; 或Ala-Asp-Asp-Asp-Asp-Asp。 估计这些肽形成活性单位或核苷酸的生物活性。 肽可以各种剂型施用于人和动物作为抗弓形虫侵袭的免疫调节剂,因为它们不表现出特异性,并且以重量为基准具有10倍或更多倍的Toxo-GIF活性,并且以摩尔计为40个或更多次 ,原始的Obioactin的。