نتایج جستجو برای: abc transporter
تعداد نتایج: 61372 فیلتر نتایج به سال:
Monosaccharides available in the extracellular milieu of Agrobacterium tumefaciens can be transported into the cytoplasm, or via the periplasmic sugar binding protein, ChvE, play a critical role in controlling virulence gene expression. The ChvE-MmsAB ABC transporter is involved in the utilization of a wide range of monosaccharide substrates but redundant transporters are likely given the abili...
The transporter associated with antigen processing-like (TAPL) is a polypeptide transporter translocating cytosolic peptides into the lumen of lysosomes driven by ATP hydrolysis. TAPL belongs to the family of ABC transporters and forms a homodimer. This ABC transporter not only shows a broad tissue but also a wide phylogenetic distribution, because orthologs are still found in nematodes and ins...
BACKGROUND ATP-binding cassette (ABC) transporters are involved in many physiologic processes, such as lipid transport, sterol homeostasis, immune mechanisms, and drug transport, and cause various human inherited diseases. Thus, the analysis of ABC transporter mRNA expression profiles for basic research, especially in the field of lipid metabolism, for clinical diagnosis, and for monitoring of ...
ABC transporter trafficking in rat liver induced by cAMP or taurocholate and [(35)S]methionine metabolic labeling followed by subcellular fractionation were used to identify and characterize intrahepatic pools of ABC transporters. ABC transporter trafficking induced by cAMP or taurocholate is a physiologic response to a temporal demand for increased bile secretion. Administration of cAMP or tau...
Cystic fibrosis transmembrane conductance regulator (CFTR) is a membrane-spanning adenosine 5'-triphosphate (ATP)-binding cassette (ABC) transporter. ABC transporters and other nuclear and cytoplasmic ABC proteins have ATPase activity that is coupled to their biological function. Recent studies with CFTR and two nonmembrane-bound ABC proteins, the DNA repair enzyme Rad50 and a structural mainte...
BACKGROUND Active efflux of irinotecan by ATP-binding cassette (ABC)-transporters, in particular ABCB1 and ABCG2, is a well-established drug resistance mechanism in vitro and in pre-clinical mouse models, but its relevance in colorectal cancer (CRC) patients is unknown. Therefore, we assessed the association between ABC-transporter expression and tumour response to irinotecan in patients with m...
In all kingdoms of life, ATP binding cassette (ABC) transporters are essential to many cellular functions. In this large superfamily of proteins, two catalytic sites hydrolyze ATP to power uphill substrate translocation. A central question in the field concerns the relationship between the two ATPase catalytic sites: Are the sites independent of one another? Are both needed for function? Do the...
The ABC (ATP Binding Cassette) transporter protein superfamily comprises a large number of ubiquitous and functionally versatile proteins conserved from archaea to humans. ABC transporters have a key role in many human diseases and also in the development of multidrug resistance in cancer and in parasites. Although a dramatic progress has been achieved in ABC protein studies in the last decades...
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