Creatine Transport in Brush-Border Membrane Vesicles Isolated from Rat Kidney Cortex
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چکیده
منابع مشابه
Sulphate-ion/sodium-ion co-transport by brush-border membrane vesicles isolated from rat kidney cortex.
Uptake of SO(4) (2-) into brush-border membrane vesicles isolated from rat kindey cortex by a Ca(2+)-precipitation method was investigated by using a rapid-filtration technique. Uptake of SO(4) (2-) by the vesicles was osmotically sensitive and represented transport into an intra-vesicular space. Transport of SO(4) (2-) by brush-border membranes was stimulated in the presence of Na(+), compared...
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Transport of glutamine by brush-border vesicles prepared from the renal cortex was studied. The transport system had both Na+-dependent and Na+-independent components. The presence of Na+ in the incubation resulted in an 'overshoot' at 30s at which time the rates of transport were approx. 8 times the values obtained in the absence of Na+. Variation of the glutamine concentration showed that the...
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The transport of folates by the intact intestine consists of a saturable component with a luminal pH optimum of 6.0 and a nonsaturable component which predominates at high folate concentrations and/or high luminal pH. We sought to determine whether these properties reflect the behavior of the brush border membrane, free of intracellular enzyme activities, organelles, and intercellular junctions...
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Uptake of taurocholate into brush-border membrane vesicles isolated from rat small intestine by a Ca(2+) -precipitation method was investigated by using a rapid-filtration technique. Uptake of taurocholate by ileal brush-border membranes consisted of three phenomena: binding to the outside of the vesicles, transfer across the vesicle membrane and binding to the intravesicular compartment. The t...
متن کاملbrush-border membrane vesicles
The characteristics of hypoxanthine transport were examined in purified brush-border membrane vesicles isolated from guineapig kidney. Hypoxanthine uptake in the vesicles was specifically stimulated by both Na+ and an inside-negative potential, resulting in a transient accumulation of intravesicular hypoxanthine. Na+-dependent hypoxanthine influx was saturable (apparent Km 4.4 + 2.1 ,uM, Vmax 1...
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ژورنال
عنوان ژورنال: Journal of the American Society of Nephrology
سال: 2001
ISSN: 1046-6673,1533-3450
DOI: 10.1681/asn.v1291819