منابع مشابه
Models of Tet-On System with Epigenetic Effects
We present the first results of ongoing work investigating two models of the artificial inducible promoter Tet-On that include epigenetic regulation. We consider chromatin states and 1D diffusion of transcription factors that reveal, respectively, stochastic noise and a memory effect.
متن کاملHypoxia, Epithelial-Mesenchymal Transition, and TET-Mediated Epigenetic Changes
Tumor hypoxia is a pathophysiologic outcome of disrupted microcirculation with inadequate supply of oxygen, leading to enhanced proliferation, epithelial-mesenchymal transition (EMT), metastasis, and chemo-resistance. Epigenetic changes induced by hypoxia are well documented, and they lead to tumor progression. Recent advances show that DNA demethylation mediated by the Ten-eleven translocation...
متن کاملTn10 tet operator mutations affecting Tet repressor recognition.
The effect of single base pair alterations of the Tn10 encoded tet operator on recognition of Tet repressor was studied in vivo using a repressor titration system and in vitro by dissociation rate determinations of the respective complexes. Both methods reveal that the two operators, O1 and O2, which are in a tandem arrangement in the wild type, are recognized with a two-fold different affinity...
متن کاملTetracycline resistance mediated by tet(W), tet(M), and tet(O) genes of Bifidobacterium isolates from humans.
MICs of tetracyclines were determined for 86 human Bifidobacterium isolates and three environmental strains. The tet(O) gene was found to be absent in these isolates. tet(W) and tet(M) were found in 26 and 7%, respectively, of the Bifidobacterium isolates, and one isolate contained both genes. Chromosomal DNA hybridization showed that there was one chromosomal copy of tet(W) and/or tet(M).
متن کاملConditional expression in the malaria mosquito Anopheles stephensi with Tet-On and Tet-Off systems.
We report successful conditional gene expression in the malaria vector, Anopheles stephensi, on the basis of binary systems consisting of gene driver and responder transgenic lines generated by Minos-mediated germline transformation. An A. gambiae tissue-specific enhancer derived from a serpin (SRPN10) gene was utilized to control the temporal and spatial expression of doxycycline (dox)-sensiti...
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ژورنال
عنوان ژورنال: Cell Stem Cell
سال: 2011
ISSN: 1934-5909
DOI: 10.1016/j.stem.2011.01.009