نتایج جستجو برای: urea transporter b expression
تعداد نتایج: 1715338 فیلتر نتایج به سال:
Most neutral l-amino acid acids are transported actively across the luminal brush-border membrane of small intestine and kidney proximal tubule epithelial cells by a Na(+) cotransport system named B(0) that has been recently molecularly identified (B(0)AT1, SLC6A19). We show here that the opossum kidney-derived cell line OK also displays a Na(+)-dependent B(0)-type neutral l-amino acid transpor...
New chemotherapeutics active against multidrug-resistant Mycobacterium tuberculosis are urgently needed. We report on the identification of an adamantyl urea compound that shows potent bactericidal activity against M. tuberculosis and a unique mode of action, namely the abolition of the translocation of mycolic acids from the cytoplasm, where they are synthesized to the periplasmic side of the ...
BACKGROUND Urea transporters (UTs) are important in urine concentration and in urea recycling, and UT-B has been implicated in both. In kidney, UT-B was originally localized to outer medullary descending vasa recta, and more recently detected in inner medullary descending vasa recta. Endogenously produced microRNAs (miRs) bind to the 3'UTR of genes and generally inhibit their translation, thus ...
Background and purpose: MDR1 is nowadays considered as a known transporter involved in drug resistance of different cancers. However, the importance of this protein in different systems of the body and its functional role in other diseases is less studied. This article aimed at investigating the role of MDR1 in the immune system and neurological disorders, and also exploring the possible therap...
A new polyclonal antibody to the human erythrocyte urea transporter UT-B detects a broad band between 45 and 65 kDa in human erythrocytes and between 37 and 51 kDa in rat erythrocytes. In human erythrocytes, the UT-B protein is the Kidd (Jk) antigen, and Jk(a+b+) erythrocytes express the 45- to 65-kDa band. However, in Jk null erythrocytes [Jk(a-b-)], only a faint band at 55 kDa is detected. In...
We provide evidence here that b(0,+) amino acid transporter (b(0, +)AT) interacts with 4F2 heavy chain (4F2hc) as well as with the protein related to b(0,+) amino acid transporter (rBAT) to constitute functionally competent b(0,+)-like amino acid transport systems. This evidence has been obtained by co-expression of b(0, +)AT and 4F2hc or b(0,+)AT and rBAT in human retinal pigment epithelial ce...
broomrape (orobanche aegyptica) is an obligate root parasite causing yield losses in large number of crops such as tomato, sunflower, cucumber, tobacco. in tropical and mediterranean countries from europe, africa and asia. several methods have been suggested for control of this parasite, but most of them are expensive and ineffective. for the efficient control, a better understanding of its int...
Because L-arginine is degraded by hepatic arginase to ornithine and urea and is transported by the regulated 2A cationic amino acid y(+) transporter (CAT2A), hepatic transport may regulate plasma arginine concentration. Groups of rats (n = 6) were fed a diet of either low salt (LS) or high salt (HS) for 7 days to test the hypothesis that dietary salt intake regulates plasma arginine concentrati...
DESPITE SEVERE HYPEROSMOTIC stress imposed by NaCl and urea on cells of the renal medulla, the elevated and highly variable osmolality in this part of the kidney is necessary for proper function of the urinary concentrating mechanism. This mechanism develops only after birth, and newborn rats are incapable of producing concentrated urine (13). Depending on hydration state, renal medullary osmol...
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