FIG. 1.

Summary of chimeric L1-L2 fusion proteins A to J. HPV16 L2 peptides with the indicated amino acid residues were inserted into the DE loop of BPV1 L1 protein (between residues 133 and 134) or HPV16 L1 protein (between residues 136 and 137). Solid lines indicate L1 proteins, and open bars indicate L2 peptides. Asterisks indicate that 2 aa (Pro and Arg) were added N and C terminal to the respective peptide resulting from restriction enzyme sites used for cloning. The schemes are not drawn to scale.