Cation-stimulated Adenosine Triphosphatase Activity and Cation Transport in Corn Roots
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منابع مشابه
Purification and Characterization of a Cation-stimulated Adenosine Triphosphatase from Corn Roots.
A membrane-bound, monovalent cation-stimulated ATPase from Zea mays roots has been purified to a single band on sodium dodecyl sulfate gel electrophoresis. Microsomal preparations with K(+) -stimulated ATPase activity were extracted with 1 m NaClO(4), and the solubilized enzyme was purified by chromatography on columns of n-hexyl-Sepharose, DEAE-cellulose, and Sephadex G-100 Superfine. A 500-fo...
متن کاملThe asymmetrical stimulation of a membrane adenosine triphosphatase in relation to active cation transport.
may be presumed to result from degradation of uronic acid residues, but the origin of the absorption of the hydrolysates of the remaining esters is less certain. The structures of these compounds are still not clearly understood and the available methods of preparation usually yield heterogeneous products (see Mori, 1953). However, the nature of the absorbing materials did not fall within the s...
متن کاملDinitrophenol-stimulated adenosine triphosphatase activity in extracts of Desulfovibrio gigas.
A dinitrophenol (DNP)-stimulated adenosine triphosphatase (ATPase) has been found in both the soluble and particulate fractions of the anaerobic sulfate-reducing bacterium, Desulfovibrio gigas. As the soluble ATPase was labile to storage, only the particulate enzyme was studied in detail. It was optimally stimulated by DNP at 4 mm, and activity was insensitive to inhibition by ouabain. The ATPa...
متن کاملThyroid-induced alterations in myocardial sodium-potassium-activated adenosine triphosphatase, monovalent cation active transport, and cardiac glycoside binding.
The effects of thyroid hormone on guinea pig myocardial NaK-ATPase activity, transmembrane monovalent cation active transport, and cardiac glycoside binding were were examined. NaK-ATPase activities of left atrial and left ventricular homogenates of control and triiodothyronine (T3)-treated animals were determined, and compared to activities of skeletal muscle and liver. T3 administration was a...
متن کاملInhibition of membrane-bound adenosine triphosphatase and of cation transport in Streptococcus faecalis by N,N'-dicyclohexylcarbodiimide.
N, N’-Dicyclohexylcarbodiimide (DCCD) was found to be a potent inhibitor of the membrane-bound ATPase of Sfrepfococcus foe&is but did not inhibit the solubilized form of the enzyme. Inhibited membrane-bound ATPase was reactivated by releasing the enzyme from the membrane. Conversely, sensitivity to DCCD was restored by reconstituting the ATPase-membrane complex from solubilized ATPase and deple...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1976
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.58.3.331