The peroxidase-like activity of the hemoglobin-haptoglobin complex.
نویسندگان
چکیده
منابع مشابه
Heterotropic Effect of β-lactam Antibiotics on Antioxidant Property of Haptoglobin) 2-2(-Hemoglobin Complex
Haptoglobin (Hp) is a mammalian serum glycoprotein showing a genetic polymorphism with three types, 1-1, 2-2 and 1-2. Hp appears to conserve the recycling of heme-iron by forming an essentially irreversible but non-covalent complex with hemoglobin which is released into the plasma by erythrocyte lysis. As an important consequence, Haptoglobin-Hemoglobin complex (Hp-Hb) shows considerable antiox...
متن کاملHeterotropic Effect of β-lactam Antibiotics on Antioxidant Property of Haptoglobin) 2-2(-Hemoglobin Complex
Haptoglobin (Hp) is a mammalian serum glycoprotein showing a genetic polymorphism with three types, 1-1, 2-2 and 1-2. Hp appears to conserve the recycling of heme-iron by forming an essentially irreversible but non-covalent complex with hemoglobin which is released into the plasma by erythrocyte lysis. As an important consequence, Haptoglobin-Hemoglobin complex (Hp-Hb) shows considerable antiox...
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The physicochemical and biochemical properties of hemoglobin associated with haptoglobin were compared with those of hemoglobin bour,d by antihemoglobin antibody. The mechanism of enhanced peroxidase activity of hemoglobin bound by haptoglobin was concluded not to be activation but stabilization of hemoglobin at acidic pH by haptoglobin. Haptoglobin protects hemoglobin from denaturation by acid...
متن کاملKineticDeterminationof Serum Haptoglobin witha CentrifugalAnalyzer
We describe a method for determining haptoglobin with a centrifugal analyzer that is based on haptoglobin combining stoichiometrically with hemoglobin to form a complex that has peroxidase-like activity proportional to the quantity of haptoglobin present. Under assay conditions, unbound hemoglobin exhibits only a small fraction of the total peroxidase activity. Activity is measured colorimetric...
متن کاملA new approach to photometry of glycated hemoglobin in human blood.
This new approach to measurement of glycated hemoglobin (Hb A1) is a three-step procedure involving (a) conversion of oxyhemoglobin into NO-hemoglobin by sodium dithionite and sodium nitrite in the presence of inositol hexaphosphate; (b) incubation with haptoglobin, which preferentially binds glycated hemoglobin; and (c) determination of the hemoglobin/haptoglobin complex by its peroxidase acti...
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عنوان ژورنال:
- Zeitschrift fur klinische Chemie und klinische Biochemie
دوره 6 2 شماره
صفحات -
تاریخ انتشار 1968