Somatic Cell Nuclear Transfer in Mice: Basic Protocol and Its Modification for Correcting X Chromosome Inactivation Status

Methods in Molecular Biology
Kimiko InoueAtsuo Ogura

Abstract

Somatic cell nuclear transfer (SCNT) enables the production of animals from single cell nuclei. Unlike normally fertilized embryos, SCNT-derived embryos ectopically express the Xist gene from the maternal allele, because of the lack of Xist-repressing imprints in the somatic donor genome. This has severely compromised the development of SCNT-derived embryos, at least in mice. Here, we describe the basic protocol of mouse SCNT as well as a Xist knockdown SCNT procedure, which remarkably increases the efficiency of cloning mice.

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