منابع مشابه
Leghemoglobin. II. Changes in conformation and chemical reactivity linked to reaction with a dissociable low molecular weight ligand, X.
Leghemoglobin may be isolated from soybean root nodules as a complex, leghemoglobin a-X of ferric leghemoglobin with a low molecular weight ligand X. That complex dissociates at neutral or alkaline pH and the ligand X may be separated from free leghemoglobin by ultrafiltration. The complex is regenerated by combining ferric leghemoglobin with X. The affinity of ferrous leghemoglobin for X is ve...
متن کاملSynthesis of high molecular weight polyethylene using FI catalyst
A FI Zr-based catalyst of bis[N-(3,5-dicumylsalicylidene)-2′,6′diisopropylanilinato]zirconium(IV) dichloride was prepared and used for polymerization of ethylene. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature up to 35 oC were favorable for catalyst/MAO to raise the catalytic activity as...
متن کاملThe reaction of ferrous leghemoglobin with hydrogen peroxide to form leghemoglobin(IV).
Ferrous leghemoglobin reacts with hydrogen peroxide to form the stable product, leghemoglobin(IV). The reaction follows second order kinetics (k = 2.24 X 10(4) M-1 S-1 at 20 degrees C) and may be regarded as a single-step, two-electron oxidation. Ferric leghemoglobin is not an intermediate. The oxidation state of leghemoglobin(IV) is established by reductive titration with dithionite; 2 eq of d...
متن کاملThe Molecular Weight of Antibodies
1. Highly purified preparations of homogeneous antibody can be made by the salt dissociation methods (6, 7) without any change in sedimentation due to the method of purification. 2. Antibodies prepared from sera of various animal species fall into two groups as regards molecular weight; in one group cow, horse, and pig, a heavy molecule of molecular weight 990,000 is formed; in human being, rab...
متن کاملThe Molecular Weight of Antibodies
1. Highly purified rabbit Type III pneumococcus anticarbohydrate proved to be homogeneous in the ultracentrifuge and its sedimentation constant, 7.0.10(-13), did not differ from that of the principal component of normal rabbit globulin or of immune rabbit globulin containing up to 50 per cent of anti-egg albumin. The molecular weight of antibody in the rabbit is therefore probably very close to...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1952
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.06-0411