hp138Plasmid HP138-puro from Dr. Iain Cheeseman's lab contains the insert Contains Cas9 and is published in Dev Cell. 2017 Feb 27;40 (4):405-420.e2. doi: 10.1016j.devcel.2017.01.012. Epub 2017 Feb 16. This plasmid is availableHP Laser 130 Printer: HP Black Laser Toner Cartridge (~1.5K pages); Preinstalled introductory HP Laser Black print cartridges (~0.5K pages, WW); Preinstalled introductory HP Laser Black print cartridges (~0.7K pages,