Commercially available from Invitrogen.
Additional information about the TOPO system for using topoisomerase for cloning: http://www.invitrogen.com/site/us/en/home/Products-and-Services/Applications/Cloning/topo/topo-resources/the-technology-behind-topo-cloning.html
Commercially available from Invitrogen.
Additional information about the TOPO system for using topoisomerase for cloning: http://www.invitrogen.com/site/us/en/home/Products-and-Services/Applications/Cloning/topo/topo-resources/the-technology-behind-topo-cloning.html