Built from the mammalian expression plasmid backbone, pCMV-5; the murine ubiquitin gene subunit 1 was inserted into the BgIII site of pCMVi to create the UB vector (Sykes and Johnston, 1999)
Sykes and Johnston, 1999: Sykes KF, Johnston SA. Genetic live vaccines mimic the antigenicity but not pathogenicity of live viruses. DNA and cell biology. 1999; 18(7); 521-531. [PubMed: 10433551].