نتایج جستجو برای: sodiumiodide symporter
تعداد نتایج: 2459 فیلتر نتایج به سال:
The proton-sucrose symporter that mediates phloem loading is a key component of assimilate partitioning in many higher plants. Previous biochemical investigations showed that a diethyl pyrocarbonate-sensitive histidine residue is at or near the substrate-binding site of the symporter. Among the proton-sucrose symporters cloned to date, only the histidine residue at position 65 of AtSUC1 from Ar...
BACKGROUND Membrane proteins play a key role in many fundamental cellular processes such as transport of nutrients, sensing of environmental signals and energy transduction, and account for over 50% of all known drug targets. Despite their importance, structural and functional characterisation of membrane proteins still remains a challenge, partially due to the difficulties in recombinant expre...
The heterofermentative lactic acid bacterium Lactobacillus brevis transports galactose and the nonmetabolizable galactose analogue thiomethyl-beta-galactoside (TMG) by a permease-catalyzed sugar:H(+) symport mechanism. Addition of glucose to L. brevis cells loaded with [(14)C]TMG promotes efflux and prevents accumulation of the galactoside, probably by converting the proton symporter into a uni...
The effect of chronic hyperfiltration, a model of cell hypertrophy, on H/HCO3 transporters was examined in the in vivo microperfused rat proximal tubule. Hyperfiltration was induced by uninephrectomy with subsequent increased dietary protein. After 2 wk the hyperfiltration group had a higher glomerular filtration rate (2.21 +/- 0.13 vs. 1.48 +/- 0.12 ml/min), associated with increased kidney we...
Candida intermedia PYCC 4715 was previously shown to grow well on xylose and to transport this sugar by two different transport systems: high-capacity and low-affinity facilitated diffusion and a high-affinity xylose-proton symporter, both of which accept glucose as a substrate. Here we report the isolation of genes encoding both transporters, designated GXF1 (glucose/xylose facilitator 1) and ...
the intestine The Na+/I-symporter mediates active iodide uptake in You might find this additional information useful... is dedicated to innovative approaches to the study of cell and molecular physiology. It is published 12 times AJP-Cell Physiology
The effects of amino acid sidechain length, substituent position and c chirality on amino acid/K+ symport have been examined in rapid filtration experiments on brush-border membrane vesicles prepared from larval Manduca sexta midgut. Cis-inhibition and trans-stimulation protocols were used to examine the effects of amino acid analogs on the uptake of alanine, phenylalanine, leucine and lysine, ...
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