Table 2: Nucleotide alterations in the E6 genes of HPV6 isolates. Genomic positions are indicated in the upper part of the table, and the mutations are vertically indicated. Conserved nucleotides in relation to the reference sequence are shown in gray. The column “Number of samples” indicates the number of patients in which the isolates are identical to the specified variant.

HPV6 samples Nucleotide positions
34Number of samples
67
94

B3B3_refTG
BR_CA01, BR_CA02, BR_CA03, BR_CA04, BR_CA05, BR_CA07, BR_CA08, BR_CA09, BR_CA10, BR_CA11, BR_CA12A11
BR_CA06GA1

B1B1_refTA
BR_CA13, BR_CA14, BR_CA15, BR_CA16, BR_CA17, BR_CA18, BR_CA19, BR_CA20, BR_C21, BR_C22, BR_C23, BR_C24, BR_C2513