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Table 2 Nucleotide sequence mutation at E7 of HPV6 isolates

From: E6 and E7 gene polymorphisms in human papillomavirus Type-6 identified in Southwest China

Sequence pattern HPV6 E7 Number of samples Sub-lineages
  10 11 100 155 294   
Reference A G G T C   
HPV6E701 G A A A A 4  
HPV6E702 . . . A A 45 B1
HPV6E703 . . . . . 94 A1
Reference AA R E F T   
AA position 4 34 52 98   
AA mutations E K Y .   
Secondary structure     S    
  1. Note: the nucleotides conserved with respect to the reference sequence were marked with a dash (.), whereas a variation position was indicated by a letter. The “S” in the last row of the table means Strand, the “H” means Helix. The “AA” means amino acid. The “R, E, F, T, K, Y” in the seventh and ninth rows of the table represent arginine, glutamic acid, phenylalanine, threonine, lysine and tyrosine, respectively. The numbers in the second row of the table mean nucleotide positions