Rosa26{mIre1.N906A.Cherry} mouse ESC line A mouse ESC line in which part or all of the targeted gene, gene trap ROSA 26, Philippe Soriano (NCBI Gene ID: 14910) is replaced to create Rosa26{mIre1.N906A.Cherry} using the Loxed Cassette Acceptor allele Rosa26{tm1(LCA)}). This ES line contains bidirectional TetO-regulated genes inserted into the Rosa26{LCA} allele by RMCE. In one direction the TetO/CMV promoter drives the expression of point mutant(N906A) of IRE1, an ER transmenbrane kinase response to unfolded protein response (UPR). In the other direction it drives the expression of red fluorescent protein mCherry. This ES cell line can be used to simultaneously over-express Ire1(N906A) and mCherry upon administration of doxycyline when the effector protein rtTA is expressed. This line can be used to study the roles of IRE1 in the response to ER stress, diet induced obesity and insulin resistance. Person: Mark A. Magnuson, Jill Lindner, Jean-Philippe Cartailler Vanderbilt University Medical Center stem cell derived cell line