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Science. 1989 Apr 28;244(4903):463-5.

Mouse embryonic stem cells and reporter constructs to detect developmentally regulated genes.

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  • 1Mount Sinai Hospital Research Institute, Division of Molecular and Developmental Biology, Toronto, Canada.

Abstract

A strategy was devised for identifying regions of the mouse genome that are transcriptionally active in a temporally and spatially restricted manner during development. The approach is based on the introduction into embryonic stem cells of two types of lacZ reporter constructs that can be activated by flanking mouse genomic sequences. Embryonic stem cells containing the lacZ constructs were used to produce chimaeric mice. Developmental regulation of lacZ expression occurred at a high frequency. Molecular cloning of the flanking endogenous genes and introduction of these potential insertional mutations into the mouse germ line should provide an efficient means of identifying and mutating novel genes important for the control of mammalian development.

PMID:
2497519
[PubMed - indexed for MEDLINE]
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