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Genesis. 2000 Sep;28(1):31-5.

A new positive/negative selectable marker, puDeltatk, for use in embryonic stem cells.

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  • 1Program in Developmental Biology, Baylor College of Medicine, Houston, Texas 77030, USA.

Abstract

A novel positive/negative selection cassette, puDeltatk, was generated. pu(Delta)tk is a bifunctional fusion protein between puromycin N-acetyltransferase (Puro) and a truncated version of herpes simplex virus type 1 thymidine kinase (DeltaTk). Murine embryonic stem (ES) cells transfected with pu(Delta)tk become resistant to puromycin and sensitive to 1-(-2-deoxy-2-fluoro-1-beta-D-arabino-furanosyl)-5-iodouracil (FIAU). Unlike other HSV1 tk transgenes, puDeltatk is readily transmitted through the male germ line. Thus pu(Delta)tk is a convenient positive/negative selectable marker that can be widely used in many ES cell applications.

PMID:
11020714
[PubMed - indexed for MEDLINE]
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