Takara, 631116, pTRE-Cycle2 Vector

pTRE-Cycle2 is a bidirectional, Tet-inducible expression vector that allows you to reversibly regulate (i.e., cycle) the amount of a protein of interest in mammalian cells while coexpressing the red fluorescent protein mCherry. Expression of both proteins is tightly regulated by the bidirectional, TRE-based promoter, PTight-Bi. Expression of the gene of interest is controlled by an additional mechanism, since the resulting protein is fused to an N-terminal ProteoTunerdestabilization domain (DD), which causes rapid proteasomal degradation of any protein to which it is fused. The degradation process can be reversed repeatedly by adding the stabilizing ligand Shield1 and then removing it from the culture medium. mCherry is coexpressed with the tagged protein, but does not contain a DD-tag, and thus is subject only to Tet-based regulation. The vector is intended for use with any Tet-On or Tet-Off Advanced Expression System. To select stable cell lines, the vector must be cotransfected with one of the provided linear selection markers.