نتایج جستجو برای: phosphate transporter
تعداد نتایج: 151774 فیلتر نتایج به سال:
Ascorbate is an antioxidant and coenzyme for various metabolic reactions in vivo. In plant chloroplasts, high ascorbate levels are required to overcome photoinhibition caused by strong light. However, ascorbate is synthesized in the mitochondria and the molecular mechanisms underlying ascorbate transport into chloroplasts are unknown. Here we show that AtPHT4;4, a member of the phosphate transp...
Glutamate transport into synaptic vesicles is a prerequisite for its regulated neurosecretion. Here we functionally identify a second isoform of the vesicular glutamate transporter (VGLUT2) that was previously identified as a plasma membrane Na+-dependent inorganic phosphate transporter (differentiation-associated Na+/P(I) transporter). Studies using intracellular vesicles from transiently tran...
Roseovarius sp. strain 217: aerobic taurine dissimilation via acetate kinase and acetate-CoA ligase.
The genome sequence of Roseovarius sp. strain 217 indicated that many pathway enzymes found in other organisms for the degradation of taurine are represented, but that a novel, apparently energy-dependent pathway is involved in the conversion of acetyl phosphate to acetyl CoA. Thus, an ABC transporter for taurine could be postulated, while inducible taurine: pyruvate aminotransferase, alanine d...
Sorghum shows strong growth stimulation on arbuscular mycorrhizal (AM) symbiosis, while barley and wheat show growth depression. We identified the AM-inducible phosphate transporter genes of these cereals. Their protein products play major roles in phosphate absorption from arbuscules, intracellular fungal structures. Unexpectedly, barley and wheat expressed the AM-inducible genes at high level...
Cells use complex mechanisms to regulate glucose transport and metabolism to achieve optimal energy and biomass production while avoiding accumulation of toxic metabolites. Glucose transport and glycolytic metabolism carry the risk of the buildup of phosphosugars, which can inhibit growth at high concentrations. Many enteric bacteria cope with phosphosugar accumulation and associated stress (i....
We report the first example of antisense RNA regulation in a hyperthermophilic archaeon. In Sulfolobus solfataricus, the transposon-derived paralogous RNAs, RNA-257(1-4), show extended complementarity to the 3' UTR of the 1183 mRNA, encoding a putative phosphate transporter. Phosphate limitation results in decreased RNA-257(1) and increased 1183 mRNA levels. Correspondingly, the 1183 mRNA is fa...
Pulmonary alveolar microlithiasis is a disorder in which many tiny fragments (microliths) of calcium phosphate gradually accumulate in alveoli. Loss of function mutations in the gene SLC34A2 coding for the sodium phosphate co-transporter (NaPi-IIb) are responsible for genetic forms of alveolar microlithiasis. We now report a consanguineous Italian family from Calabria with two affected members ...
One of the most regulated steps of translation initiation is the recruitment of mRNA by the translation machinery. In eukaryotes, this step is mediated by the 5'end cap-binding factor eIF4E bound to the bridge protein eIF4G and forming the eIF4F complex. In plants, different isoforms of eIF4E and eIF4G form the antigenically distinct eIF4F and eIF(iso)4F complexes proposed to mediate selective ...
The cell surface receptor for gibbon ape leukemia virus (Glvr-1) was recently demonstrated to serve normal cellular functions as a sodium-dependent phosphate (NaPi) transporter. This protein belongs to a newly identified phosphate transporter/retrovirus receptor gene family distinct from renal type I and II NaPi transporters. Although inorganic phosphate (Pi) transport is an important function ...
Phosphorus is acquired by plant roots primarily via the high-affinity inorganic phosphate (Pi) transporters. The transcripts for Pi transporters are highly inducible upon Pi starvation, which also results in enhanced Pi uptake when Pi is resupplied. Using antibodies specific to one of the tomato Pi transporters (encoded by LePT1), we show that an increase in the LePT1 transcript under Pi starva...
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