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The responsiveness of thyroid hormone responsive element (TRE)-containing promoter sequence to thyroid hormone (TH) was studied utilizing Xenopus laevis carrying a transgene containing 5'-upstream region of TRbetaA1 gene and green fluorescent protein (EGFP) gene. EGFP-expression was seen first in neurulae, which continued to stage 45, then became weak, and(More)
In mammals, DNA methylation is catalyzed by DNA methyltransferases (DNMTs) encoded by Dnmt1, Dnmt3a and Dnmt3b. Since, the mechanisms of regulation of Dnmts are still largely unknown, the physical interaction between Dnmt3b and chromatin was investigated in vivo and in vitro. In embryonic stem cell nuclei, Dnmt3b preferentially associated with histone(More)
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