The Esterase Activity of Bovine Mercaptalbumin
نویسندگان
چکیده
منابع مشابه
Bovine Mercaptalbumin and Non-mercaptalbumin Monomers
The monomer macroheterogeneity of commercial bovine serum albumin preparations is entirely due to oxidation of the mercaptalbumin sulfhydryl group. When the sulfhydryl group is oxidized to oxidation states higher than disulfide, circular dichroism and fluorescence data show that a tryptophanyl and a cystinyl residue are perturbed. Measurements conducted through the pH range of the N-F transitio...
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Human and bovine serum albumins have been purified in several ways. By ethanol fractionation, they have been concentrated into an amorphous fraction (the so-called Fraction V) which is over 95% pure by electrophoretic analysis at pH 8.6 (1). In addition, they have been crystallized at low ionic strength with the aid of organic precipitants (2). Human albumin has also been crystallized by saltin...
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heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولBuoyant Titration of Bovine Mercaptalbumin Chemically Modified at the Carboxyl Groups
Bovine mercaptalbumin has been modified at the carboxyl groups by means of I-ethyl-3 (3-dimethylisopropyl) carbodiimide and glycine amide. A stable derivative was obtained after modification of 54 groups. The modified protein differed only slightly from the unmodified one with respect to the optical rotatory dispersion parameters ao, bo and ~. This preparation was studied in the analytical ultr...
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Specific esterase activity, a property generally ascribed to cells of granulocytic origin, was found in abnormal erythroid precursors obtained from the bone marrows of six patients with untreated erythroleukemia. These erythroblasts also showed nonspecific esterase activity. Neither specific nor nonspecific esterase activity was detected in erythroid precursors obtained from the bone marrows of...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1972
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)45642-1