منابع مشابه
Glucose Transport Carrier in Human Erythrocyte Membranes
The effect of D-glucose on dinitrophenylation of membrane proteins of human erythrocyte ghosts by I-fluoro-2,4-dinltrobenzene was studied in the absence and in the presence of D-glucose. A double isotopic, differential labeling technique followed by gel electrophoresis of extracts in the presence of sodium dodecyl sulfate revealed the presence of a polypeptide, or polypeptides, in human erythro...
متن کاملBenzylamine exhibits insulin-like effects on glucose disposal, glucose transport, and fat cell lipolysis in rabbits and diabetic mice.
Benzylamine, a substrate of semicarbazide-sensitive amine oxidase (SSAO), stimulates glucose transport in rat adipocytes and improves glucose disposal in diabetic rats only in the presence of vanadate. These effects have been described to result from a synergism between the hydrogen peroxide formed during amine oxidation and vanadate, via the generation of pervanadate, a powerful insulin mimick...
متن کامل4.1.2??Transport of molecules across cell membranes
? Transport proteins play a critical part in solute movement because membranes constitute a barrier to free diffusion of molecules. If membranes allowed rapid diffusion of both ions and water, gradients of ions would be slight and osmotic pressure could only be achieved with enormous energy consumption. Instead, some molecules, such as water and gases, move rapidly across membranes. Unrestricte...
متن کاملUnmasking of insulin receptors in fat cells and fat cell membranes. Perturbation of membrane lipids.
Digestion of isolated fat cells, fat cell membranes, and liver cell membranes with phospholipase C and phospholipase A from various sources leads to a 3to 6-fold increase in the specific binding of 12sI-insulin to receptors in these structures. Calcium is required for digestion with phospholipase A, and digestion with phospholipase D is without effect. In contrast to the studies with insulin, t...
متن کاملCharacterization of [3H]adenosine binding to fat cell membranes.
I >H IAdenosine binding to fat cell plasma membrane preparations was examined by a vacuum filtration technique. Appreciable binding of adenosine to fat cell membranes could only be demonstrated in the presence of the adenosine deaminase inhibitors, erythro-Y-(2-hydroxy-3-nonyljadenine or deoxycoformycin. The binding of adenosine to these membranes was rapid, reaching near equilibrium within 10 ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1971
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)62312-9