yeast/mammalian expression plasmids

[Scott Vande Pol]

Has anyone made a cDNA expression plasmid that expresses well in both
saccharomyces cereciasiae and mammalian cells? Many promoters work in both
cell types, but what about RNA processing signals like splice/polyA.  It
might be possible to incorporate all the signals that both organisms need. 
Does anyone know if such a plasmid has already been constructed? 

-- 
Scott Vande Pol
Case Western Reserve University
Department of Pathology
Cleveland Oh. 44106
sbv at pop.cwru.edu