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Schnütgen, F.* ; Hansen, J. ; De-Zolt, S.* ; Horn, C.* ; Lutz, M.* ; Floß, T. ; Wurst, W. ; Ruiz Noppinger, P.* ; von Melchner, H.*

Enhanced gene trapping in mouse embryonic stem cells.

Nucleic Acids Res. 36:e133 (2008)
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Gene trapping is used to introduce insertional mutations into genes of mouse embryonic stem cells (ESCs). It is performed with gene trap vectors that simultaneously mutate and report the expression of the endogenous gene at the site of insertion and provide a DNA tag for rapid identification of the disrupted gene. Gene traps have been employed worldwide to assemble libraries of mouse ESC lines harboring mutations in single genes, which can be used to make mutant mice. However, most of the employed gene trap vectors require gene expression for reporting a gene trap event and therefore genes that are poorly expressed may be under-represented in the existing libraries. To address this problem, we have developed a novel class of gene trap vectors that can induce gene expression at insertion sites, thereby bypassing the problem of intrinsic poor expression. We show here that the insertion of the osteopontin enhancer into several conventional gene trap vectors significantly increases the gene trapping efficiency in high-throughput screens and facilitates the recovery of poorly expressed genes.
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Publication type Article: Journal article
Document type Scientific Article
Keywords functional genomics; resource; vectors; binding; mice; FUNCTIONAL GENOMICS; RESOURCE; VECTORS; BINDING; MICE
ISSN (print) / ISBN 0305-1048
e-ISSN 1362-4962
Quellenangaben Volume: 36, Issue: 20, Pages: , Article Number: e133 Supplement: ,
Publisher Oxford University Press
Reviewing status Peer reviewed