Figure 3From: From Gateway to MultiSite Gateway in one recombination eventpDONR-R4-R3. BP recombination of the att R4-att R3 Gateway cassette flanked by att B1 and att B2 sites with a linear Gateway donor vector pDONR221 (Invitrogen) which leads to the creation of the vector pDONR-R4-R3 and a cytotoxic by-product.Back to article page