Methods and materials for the cloning of DNA, in particular, for the cloning of "unclonable" DNA using genetically engineered host cells. Host cell organisms have been discovered that stabilize and inhibit rearrangement of DNA molecules capable of forming non-standard secondary and tertiary structures....http://www.google.com/patents/US5552314?utm_source=gb-gplus-sharePatent US5552314 - Cloning host organisms
