منابع مشابه
The mechanism of metmyoglobin oxidation.
The chemical behavior of metmyoglobin has received considerable attention, notably by Keilin and Hartree (1) and by George (2) and George and Irvine (3-5), on the grounds that it has the same prosthetic group as peroxidase and catalase and reacts with II&&, but at a rate more convenient for kinetic investigation. Although the mechanism of HzOz decomposition has proved t.o be different, this in ...
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The determination of the crystal structure of sperm whale metmyoglobin and several of its complexes by Stryer, Kendrew, and Watson (1) has established the chemical environment around the iron atom in this molecule. It. has been shown that a histidine group (called the “proximal heme-linked” group) is coordinated to the iron atom above the plane of the porphyrin system and that a second histidin...
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The rate constants for reduction by dithionite of a number of metmyoglobin species Mb+X(X=H2O, imidazole, OH-, F-, N3-, CNO-, SCN-, HCO2-, NO2-, and CN-) were measured at 25 degrees by stopped flow spectrophotometry. The dependence of the rate was [S2O42-]1/2, and the SO2- radical was considered to be the active reductant. Except for X=imidazole and CN-, reduction occurred through dissociation ...
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عصر روشنگری زمان شکل گیری ایده های مدرن تربیتی- آموزشی بود اما تاکید بیش از اندازه ی دوشاخه مهم فلسفی زمان یعنی عقل گرایی و حس گرایی بر دقت و وضوح، انسان عصر روشنگری را نسبت به دیگر تواناییهایش نابینا کرده و موجب به وجود آمدن افرادی تک بعدی شد که افتخارعقلانیتشان، تاکید شان بر تجربه فردی، به مبارزه طلبیدن منطق نیاکانشان وافسون زدایی شان از دنیا وتمام آنچه با حواس پنجگانه قابل درک نبوده و یا در ...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1952
ISSN: 0306-3283
DOI: 10.1042/bj0520517