Patrick Daegelen, F. William Studier, Richard E. Lenski, Susan Cure & Jihyun F. Kim (2009). Tracing Ancestors and Relatives of Escherichia coli B, and the Derivation of B Strains REL606 and BL21(DE3). Journal of Molecular Biology.

Strains

• Escherichia coli W2637
• Escherichia coli W3110