摘要:
A human myelomonocyte interferon-gamma having a novel polypeptide and carbohydrate chain structure is produced by propagation of an established human myelomonocyte in vitro or after being implanted in a non-human warm-blooded animal or in a diffusion chamber placed inside or outside the body of the animal. The human myelomonocyte may be contacted with an inducer during propagation. A monoclonal antibody specific to the human myelomonocyte interferon-gamma is produced by immunizing a non-human warm-blooded animal with purified human myelomonocyte interferon-gamma as an antigen, recovering an antibody producing cell from the animal and fusing the cell with a myeloma cell to produce a hybrid capable of producing the monoclonal antibody. The human myelomonocyte interferon-gamma can be purified by chromatography with an immobilized anti-human myelomonocyte interferon-gamma antibody such as the monoclonal antibody. The human myelomonocyte interferon-gamma can be used as a prophylactic and therapeutic agent for human interferon-gamma susceptive diseases.
摘要:
A process for purification of human leukocyte interferon is described. The process includes immunoaffinity chromatography, ion-exchange chromatography, and a series of precipitation and centrifugation steps.
摘要:
Mammalian Interleukin-1 receptor proteins (IL-1Rs), DNAs and expression vectors encoding mammalian IL-1Rs, and processes for producing mammalian IL-1Rs as products of cell culture, including recombinant systems, are disclosed.
摘要:
A purified protein, factor J, which has inhibitory properties which prevent the formation or the dissociation of Cl complex and a method of purification for said protein. The method including the following sequential chromatography steps: anion exchange, QAE-"SEPHADEX", heparin-"SEPHAROSE" affinity, "MONO Q" and hydroxylapatite.
摘要:
Polyacrylonitrile is chemically modified with HX (Cl, Br, I, CF.sub.3 SO.sub.3 H) to produce a polymer with readily replaceable X groups. The modified polyacrylonitrile is useful as an immobilization substrate for, e.g., proteins and in affinity chromatography
摘要翻译:聚丙烯腈用HX(Cl,Br,I,CF 3 SO 3 H)进行化学改性以制备具有易于替代的X基团的聚合物。 改性聚丙烯腈可用作例如蛋白质和亲和色谱法的固定底物
摘要:
Specific common nucleolar antigens are found in a broad range of human malignant tumor specimens and have been isolated, extracted and purifed. Monoclonal antibodies specific to one of these nucleolar antigens (p145) are harvested from mouse ascites or culture supernatant and used for detection of humanThe Government may have rights in this invention subject to funding grants provided by the Department of Health and Human Services No. 5 PO1-CA-10893-19.
摘要:
A novel thrombin-binding substance having the characteristics of (a) molecular weight: 47,000.+-.6,000 in reduced condition and 38,000.+-.6,000 in unreduced condition, (b) isoelectric point: pH 4.9-5.7, (c) affinity: strong affinity to thrombin, (d) activity: (1) capable of promoting the thrombin catalyzed activation of protein C, (2) prolongs clotting time; and (e) stability: stable to denaturing agents (urea sodium and dodecylsulfate), can be prepared from a human placenta by means of extraction, fractionation using ion exchange chromatography and affinity chromatography, and/or gel filtration, followed by electrophoresis. The substance is useful as a medicine for the treatment of thrombosis.
摘要:
Recombinant pre-S-HBsAg is purified by a rapid and efficient two step chromatographic process. Yeast cells expressing recobinant pre-S-HBsAg are disrupted, the cell contents are clarified and separated by polymerized human serum albumin affinity chromatography. The pre-S-HBsAg is further purified by hydrophobic interaction chromatography using butyl agarose. This process results in pre-S-HBsAg that is greater than 90% pure.
摘要:
Homogeneous cyclophilin, a soluble binding protein, having a specific binding activity of above 50 ug cyclosporin A per mg protein and a molecular weight of about 17,600 daltons, reversibly binds immunosuppressants or antibodies thereto such as cyclosporin or anti-cyclophilin. It is isolated from thecytosol of several different mammalian tissues and can be used in various diagnostic and purifications procedures.
摘要:
A method for producing highly pure LPF-HA (Leucocytosis-promoting Factor agglutinin) from culture media of Bordetella pertussis in a high yield by an affinity chromatography using a denatured ceruloplasmin as a ligand. The LPF-HA obtained by this invention is highly pure and does not contain almost endotoxin of B. pertussis and is useful for the preparation of various reagents utilizing the physiological activities, a medicine for treating diabetes, and a pertussis vaccine.