Heterologous immunoaffinity chromatography in the purification of streptolysin O
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Isolation and purification of HLA-DR antigen from Daudi cell line by immunoaffinity chromatography
Introduction: The major histocompatibility complex (MHC) is a group of cell surface proteins that are essential for recognizing foreign molecules in human and other mammals. The physiologic function of MHC molecules is the presentation of peptides to T cells. In this study, we evaluated the purification of a class II MHC molecule (HLA-DR) from a human Burkitt′s lymphoma cell line; Daudi...
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Monospecific (affinity-purified) anti-(yeast glucose-6-phosphate dehydrogenase) IgG inhibits three different NADPH-requiring enzymes, chicken liver dihydrofolate reductase, pigeon liver fatty acid synthetase and chicken liver malic enzyme. The inhibition of all three enzymes was approx. 50% in a 2h incubation with 100 micrograms of IgG. Similarly, with several different NADH-requiring enzymes, ...
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A monoclonal antibody prepared against TEM-1 beta-lactamase was found to compete with penicillins and cephalosporins for binding to the enzyme. The purified antibody preparation was linked to Sepharose 4B and used for immunoaffinity-chromatography purification of TEM-1 beta-lactamase. Elution with either benzylpenicillin or cloxacillin yielded a highly purified, concentrated and active enzyme p...
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The lantibiotic nisin A was purified to homogeneity by a single-step immunoaffinity chromatography method. An immunoadsorption matrix was developed by direct binding of anti-nisin A monoclonal antibodies to N-hydroxysuccinimide-activated Sepharose. The purification procedure was rapid and reproducible and rendered much higher final yields of nisin than any other described method.
متن کاملPhytochrome immunoaffinity purification.
We have developed a phytochrome immunoaffinity purification procedure that yields undegraded oat (Avena sativa L., cv. Garry) phytochrome of greater than 98% purity within 2 hours when starting with a brushite-purified preparation. Immunoaffinity-purified phytochrome, except for its greater purity, is indistinguishable from conventionally purified phytochrome by gel exclusion chromatography, is...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1979
ISSN: 0378-1097
DOI: 10.1016/0378-1097(79)90204-0