Invitrogen - pcDNA3.1V5HisTOPO/TA: [http://products.invitrogen.com/ivgn/product/K480001]
pcDNA3.1V5HisTOPO/TA sequence: [http://www.biovisualtech.com/bvplasmid/pcDNA3.1D_V5-His-TOPO.htm]