| Literature DB >> 7866703 |
A J Macadam1, D M Stone, J W Almond, P D Minor.
Abstract
All three live, attenuated vaccine strains of poliovirus contain important attenuation determinants in a short conserved sequence in the 5' noncoding region. Evidence suggests these act by weakening a secondary-structural element critical for the unusual mechanism of translational initiation of picornaviruses, in which ribosomes bind directly to a site far downstream of the 5' end. Understanding the molecular basis of attenuation may allow novel vaccine strains to be designed.Entities:
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Year: 1994 PMID: 7866703 DOI: 10.1016/0966-842x(94)90803-6
Source DB: PubMed Journal: Trends Microbiol ISSN: 0966-842X Impact factor: 17.079