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Keywords:

  • Cre recombinase;
  • TAT;
  • protein transduction;
  • induced DNA recombination;
  • gene deletion

Abstract

Summary: Cre is a DNA recombinase that recognizes 34 base-pair loxP sites of recombination. We have developed a cell-permeable Cre recombinase, TATCre, that is capable of mediating deletion of loxP-flanked targets by simply adding TATCre to cell cultures. Thus, TATCre allows efficient induced DNA recombination without the use of a Cre recombinase transgene or any other genetic material and should prove useful for the genetic manipulation of a wide variety of cell types that have been engineered to possess loxP sites. genesis 33:48–54, 2002. © 2002 Wiley-Liss, Inc.