MUTATION: A VEE mutant with a PE2 cleavage signal mutation and a suppressor mutation in E1 is highly attenuated in mice (Davis et al., 1995).
References
Davis et al., 1995: Davis NL, Brown KW, Greenwald GF, Zajac AJ, Zacny VL, Smith JF, Johnston RE. Attenuated mutants of Venezuelan equine encephalitis virus containing lethal mutations in the PE2 cleavage signal combined with a second-site suppressor mutation in E1. Virology. 1995; 212(1); 102-110. [PubMed: 7676619].