Freeflow 2d
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Subcellular Localization of a High Affinity Binding Site for d-myo-Inositol 1,4,5-Trisphosphate from Chenopodium rubrum1
It is now generally accepted that a phosphoinositide cycle is involved in the transduction of a variety of signals in plant cells. In animal cells, the binding of d-myo-inositol 1,4,5-trisphosphate (InsP3) to a receptor located on the endoplasmic reticulum (ER) triggers an efflux of calcium release from the ER. Sites that bind InsP3 with high affinity and sp
American Society of Plant Physiologists.
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14. Proximal bicarbonate reabsorption during Ringer and albumin infusions in the rat.
Several studies have clearly shown that extracellular volume expansion is associated with suppression of whole kidney bicarbonate reabsorption, although little is known concerning the single nephron correlates of this response. More recently, attention has also been focussed on bicarbonate transport in attempts to identify a possible role for this ion in enh
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15. Characteristics of a Phosphatidylinositol Exchange Activity of Soybean Microsomes 1
Microsome fractions from hypocotyls of dark-grown soybean (Glycine max [L.] Merrill) seedlings incorporated myo-inositol into phosphatidylinositol by an exchange reaction stimulated by Mn2+ (optimum at 10 mm) and cytidine nucleotides (CMP = CDP ≃ CTP) but not by Mg2+ or nucleotides other than cytidine nucleotides. The activity was membrane associated, with
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16. Effect of Bafilomycin A1 and Nocodazole on Endocytic Transport in HeLa Cells: Implications for Viral Uncoating and Infection
Bafilomycin A1 (baf), a specific inhibitor of vacuolar proton ATPases, is commonly employed to demonstrate the requirement of low endosomal pH for viral uncoating. However, in certain cell types baf also affects the transport of endocytosed material from early to late endocytic compartments. To characterize the endocytic route in HeLa cells that are frequent
American Society for Microbiology.
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17. Renal tubular lithium reabsorption in potassium-depleted rats.
1. In order to identify the tubular sites responsible for the reduced fractional excretion of lithium (FELi) during potassium depletion, free-flow micropuncture was performed in anaesthetized rats that had been fed a low potassium (low-K+) diet or a control diet for 5-6 days. FELi in low-K+ rats was 0.09 +/- 0.02, compared with 0.25 +/- 0.01 in control anima