نتایج جستجو برای: tc1
تعداد نتایج: 744 فیلتر نتایج به سال:
We examined insertion site profiles generated from three studies of Tc1/mariner elements: Tc1 (genomic copies and experimentally induced insertions (van Luenen and Through this comparison we found that bendability, protein-induced deformability and A-philicity are the most significant for determining insertion site preference. We further examined Tn5 and Ty1 insertion sites and found that Tn5 s...
Tc1-like transposons consist of an inverted repeat sequence flanking a transposase gene that exhibits similarity to the mobile DNA element, Tc1, of the nematode, Caenorhabditis elegans. They are widely distributed within vertebrate genomes including teleost fish; however, few active Tc1-like transposases have been discovered. In this study, 17 Tc1-like transposon sequences were isolated from 10...
The Tc1/mariner family of DNA transposons is widespread across fungal, plant and animal kingdoms, and thought to contribute to the evolution of their host genomes. To date, an active Tc1 transposon has not been identified within the native genome of a vertebrate. We demonstrate that Passport, a native transposon isolated from a fish (Pleuronectes platessa), is active in a variety of vertebrate ...
Our understanding of persistence and plasticity of IL-17A+ memory T cells is clouded by conflicting results in models analyzing T helper 17 cells. We studied memory IL-17A+ CD8+ T-cell (Tc17) homeostasis, persistence and plasticity during fungal vaccine immunity. We report that vaccine-induced memory Tc17 cells persist with high fidelity to the type 17 phenotype. Tc17 cells persisted durably fo...
The Tc1/mariner family of DNA transposons is widespread across fungal, plant and animal kingdoms, and thought to contribute to the evolution of their host genomes. To date, an active Tc1 transposon has not been identified within the native genome of a vertebrate. We demonstrate that Passport, a native transposon isolated from a fish (Pleuronectes platessa), is active in a variety of vertebrate ...
Naive T cells in the periphery mainly secrete interleukin (IL) 2 upon activation. After stimulation in the presence of appropriate costimulators, both CD4+ and CD8+ T cells differentiate into effector cells secreting distinct T helper (Th) 1- and Th2-like cytokine patterns. Subsequent to differentiation, both CD4+ (Th1 and Th2) and CD8+ (TC1 and TC2) cells are stable and cannot be induced to di...
The previously described mutator system of Caenorhabditis elegans var. Bergerac has as one of its targets unc-22, a previously uncloned gene on chromosome IV important in assembly and function of the body wall musculature. By assuming that the mutator activity involved transposition of the repetitive element Tc1 into the unc-22 gene we have succeeded both in cloning the unc-22 gene and in demon...
The Tc1-like transposable elements, originally described in Caenorhabditis elegans, have a much wider phylogenetic distribution than previously thought. In this paper, we demonstrate that Tc1 shares sequence identity in its open reading frame and terminal repeats with a new transposable element Barney (also known as TCb1-Transposon Caenorhabditis briggsae 1). Barney was detected and isolated by...
The Wnt/beta-catenin pathway has been implicated in human cancers. Here, we show that TC1 (C8orf4), a small protein present in vertebrates, functions as a positive regulator of the pathway. TC1 interacts with Chibby (Cby) and thereby enhances the signaling pathway by relieving the antagonistic function of Cby on the beta-catenin-mediated transcription. Upon coexpression in mammalian cells, TC1 ...
In this study, structural model of the pore loop region of the voltage-gated potassium channel Kv1.1 from human Homo sapiens was constructed based on the crystallographic structure of KcsA by structural homology. The pore loop region of Kv1.1 exhibits similar folds as that of KcsA. The structural feature of the selectivity filter of Kv1.1 is nearly identical to that of KcsA, whereas most of the...
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