Figure 1.

Structural organization of the Juan-A element of Aedes aegypti. ORF1 encodes a nucleic acid binding protein and ORF2 encodes both an apurinic/apyrimidinic (AP) endonuclease and reverse transcriptase (RT) domain. Arrows indicate the 939 bp region amplified by PCR that was used for phylogenetic inference. A canonical polyadenylation signal sequence is present in the 3' end of Juan-A (not shown) Regions used for copy number determination by database search in Table 1 are shown by horizontal lines.