| abstract |
Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein 2 gene which, when operably incorporated into an alphavirus replicon particle, eukaryotic layered vector initiation system, alphavirus vector construct or RNA vector replicon, provides a noncytopathic phenotype or confers the ability to establish persistent replication. Also disclosed are RNA vector replicons, alphavirus vector constructs, alphavirus replicon particles and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules, as well as methods of using such replicons, constructs, particles and eukaryotic layered vector initiation systems for expression of recombinant proteins. |