Mouse ooplasm confers context-specific reprogramming capacity
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Updated: May 19, 2026

Mouse in Utero Electroporation: Controlled Spatiotemporal Gene Transfection
Published on: August 15, 2011
Michelle M Chan1, Zachary D Smith, Dieter Egli
1Broad Institute of MIT, Cambridge, Massachusetts, USA.
Abstract:
Enucleated oocytes have the distinctive ability to reprogram somatic nuclei back to totipotency. Here, we investigate genome-scale DNA methylation patterns after nuclear transfer and compare them to the dynamics at fertilization. We identify specific targets for DNA demethylation after nuclear transfer, such as germline-associated promoters, as well as unique limitations that include certain repetitive element classes.
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