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:
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.
摘要:
A novel lymphokine, LK 3 which is a glycoprotein with a molecular weight of 15,000±2,000 daltons; isoelectric point pl, 4.5±0.5; electrophoretic mobility Rf, 0.73±0.05; cytotoxic to L 929 cells; and cytostatic to KB cells with or without human interferon-alpha. The lymphokine significantly inhibits in vivo the growth of malignant human tumours in cooperation with human interferon, and is useful in prophylactic and thereap- eutic treatment of malignant tumours in humans.
摘要:
Use of a toxin which specifically inhibits cellular protein synthesis for the manufacture of a pharmaceutical composition for the treatment of acquired immunodeficiency syndrome (AIDS). The pharmaceutical composition comprises a liposomal preparation containing said toxin.
摘要:
Die Erfindung beschreibt körpereigene Proteine die die Blutgerinnung hemmen und die die Gerinnungsfaktoren nicht inaktivieren, Verfahren zur Herstellung dieser Proteine sowie ihre Verwendung.
摘要:
Disclosed are novel fusion protein constructs comprising a functional mitochondrial protein, that can enter mitochondria within intact cells. Further disclosed are methods of treating mitochondrial disorders by the disclosed fusion proteins and compositions therefor.
摘要:
Disclosed is a method for modifying naturally occuring biocompatible biopolymers of plant and animal origin by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical properties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.