NovaBlue competent cells are designed for convenient and reliable plasmid transformation. NovaBlue is a K-12 strain ideally suited as an initial cloning host due to its high transformation efficiency, blue/white screening capability (with appropriate plasmids), and recA and endA mutations, which result in high yields of excellent-quality plasmid DNA. Standard NovaBlue and convenient NovaBlue Singles™ are ideal for routine cloning, while NovaBlue GigaSingles™ are most suitable for applications requiring higher transformation efficiencies.