Novel glycoprotein and gene coding therefor
    82.
    发明公开
    Novel glycoprotein and gene coding therefor 失效
    糖蛋白和丹参

    公开(公告)号:EP0351313A2

    公开(公告)日:1990-01-17

    申请号:EP89401996.7

    申请日:1989-07-11

    IPC分类号: C07K15/00

    摘要: The present invention provides a glycoprotein derived from human cell membrane, which has a molecular weight of 20 to 25 Kd as estimated by SDS polyacrylamide gel electrophoresis, and contains N-glycoside type carbohydrate chain and phosphatidylinositol, and possesses an inhibitory activity to complement.mediated cell membrane damage. The present invention further provides a gene coding for the glycoprotein, and a method for the production of the glycoprotein and the gene therefor.

    摘要翻译: 本发明提供衍生自人细胞膜的糖蛋白,其通过SDS聚丙烯酰胺凝胶电泳估计的分子量为20〜25Kd,并含有N-糖苷型碳水化合物链和磷脂酰肌醇,并具有补体的抑制活性。 细胞膜损伤。 本发明还提供了编码糖蛋白的基因,以及糖蛋白的制造方法及其基因。

    IMMUNOSUPPRESSIVE FACTOR.
    83.
    发明公开
    IMMUNOSUPPRESSIVE FACTOR. 失效
    免疫抑制因子。

    公开(公告)号:EP0269742A4

    公开(公告)日:1989-12-12

    申请号:EP87902756

    申请日:1987-04-27

    摘要: Immunosuppressive factor of the following properties: (1) molecular weight: 45,000 to 65,000 and 150,000 to 200,000 according to gel filtration and 31,000 according to SDS-polyacrylamide gel electrophoresis; (2) isoelectric point: 4.6 to 4.8; (3) being elutable at a salt concentration of 0.31 to 0.32 M by FPLC-mono Q anion exchange chromatography; (4) not adsorbable to immobilized concanavalin A sepharose and Blue sepharose; (5) non-sensitive to deoxyribonuclease, ribonuclease, papain, and periodic acid, and sensitive to trypsin, alpha-chymotrypsin, and pronase; (6) stable at pH 2 to 10; (7) stable for a long time at 4°C and partly deactivated by heat treatment at 56°C or 90°C for 30 minutes; (8) not inhibitable by 2-mercaptoethanol, levamisole, N-acetyl-D-glucosamine, N-acetyl-D-galactosamine, alpha-methyl-D-mannose, L-arginine or L-ornithine; (9) inhibiting production of antibody; (10) inhibiting blastogenic transformation of lymphocytes; (11) inhibiting cell division and cell multiplication; and (12) having specific structural amino acids and specific contents thereof. This immunosuppressive factor has an excellent immunosuppressing effect and is useful as medicine or reagent.