Fig. 4From: The polymorphism analysis and epitope predicted of Alphapapillomavirus 9 E6 in Sichuan, ChinaSecondary structure of HPV-31 E6 comparing reference to the variant sequence. Note a is the secondary structure pattern diagram constructed based on HPV-31 E6 reference sequence; b is the secondary structure pattern diagram constructed based on HPV-31 E6 mutation sequenceBack to article page