The HTLV-1 pro-pol frameshift site sequence is highly conserved. The consensus sequence derived from 352 HTLV-1 sequences available through the NCBI (as of January 13, 2019) is highly conserved and identical to the NCBI reference sequence NC_001436.1. Nucleotides are shown in different colors according to their sequence conservation. Nucleotides 100% conserved are black, 99.0%–99.9% conserved are red, 98.0%–98.9% conserved are orange, 97.0%–97.9% are cyan, and the single nucleotide 83.0% conserved is gray. The second most common nucleotide is shown for nucleotides that are <99.0% conserved. Nucleotide numbering is consistent with Figure 1B.
