Figure 1. Schematic of Ad5-PfCSP and Ad5-PfAMA1 vectors.
The parent adenovector was a serotype 5 adenovirus carrying deletions in E1, E4 and part of the E3 region with a transcriptionally inert spacer inserted into the site of the E4 deletion (TIS1), the resulting replication defective vector called GV11D. Codon-optimized CSP or AMA1 genes were inserted into the E1 region under the control of a cytomegalovirus promoter (hCMV IE). SV40 pA = simian virus 40 polyadenylation sequence.