A candidate vaccine for hepatitis B containing the complete viral surface protein
Peter J. Kniskern, Arpi Hagopian, Pamela Burke, Nancy Dunn, Emilio A. Emini, William J. Miller, Shigeko Yamazaki, Ronald W. Ellis – 1 January 1988 – The entire surface protein of hepatitis B virus sero‐type ayw containing the preS (preS1+preS2) and S domains has been expressed in the yeast Saccharomyces cerevisiae. Yeast containing a recombinant plasmid utilizing a constitutive promoter did not express this gene successfully due to the toxicity of the protein.