The Hypervariable Region of Streptococcus pyogenes M Protein Escapes Antibody Attack by Antigenic Variation and Weak Immunogenicity.
Sequence variation of antigenic proteins allows pathogens to evade antibody attack. The variable protein commonly includes a hypervariable region (HVR), which represents a key target for antibodies and is therefore predicted to be immunodominant. To understand the mechanism(s) of antibody evasion, we analyzed the clinically important HVR-containing M proteins of the human pathogen Streptococcus py
